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I have two lines crossing like an X. The left is (3x + 8), t - Algebra

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"Find the value of each variable and the measure of each labeled angle." I have two lines crossing like an X. The left is (3x + 8), the bottom is (5x + 4y), and the right is (5x - 20). And just so ... If I subtracted it, then I would get 8x or 10x = 180 - 4y. ... since those 2 angles are equal, then each one must be equal to 1...

Section 3-3A Basic Word Problems Lecture

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Find the value for all the unknowns by putting the value of x back into each expression. 6. List the .... Example 7 : Find the 3 angles of a triangle if the second angle is 20 less than three times the first ... The sum of the three angles (x+ 3x20 + 2x−10) is equal to 180 ... The two supplementary angles are 50 and 130 degrees.

How to find the solution for a system of equations - SAT Math

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If 7x + y = 25 and 6x + y = 23, what is the value of x? Possible Answers: 7 ... Find the value of 3x – 3y. Possible ... (7x + 3y = 20) + (–4x – 6y = 11) = (3x – 3y = 31).

Angles and Algebra Examples - Beacon Learning Center

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Sep 26, 2003 ... Find the measure of each angle. x + 3x = 180. 4x = 180 x = 45 ... Definition of Complementary Angles Two angles are complementary if the ... or 130 o . x o. (3x20) o. Let x be the measure of the lesser angle and 3x - 20 be.

x, y - Developmental Math Topic Text

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Use coordinate pairs to graph linear relationships. · Graph a linear equation using x- and y- intercepts. · Determine whether an ordered pair is a solution of an  ...

Slope and Systems of Equations

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then find the change in x and let that be your denominator. 2. ... If two lines are perpendicular, the have a slope that is the negative reciprocal and their ... Once we find an intersection point, we must put that value into both of our ... 3x-2y=4 b. 2x+y=5. In order to graph these equations, we need to put them in y=mx+b form. So,

GMAT Geometry Problems with Solutions and Explanations ...

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What is the measure of angle x if L1 and L2 are parallel lines? ... to x. Since L1 and L2 are parallel, angle y and the angle with measure 130° are supplementary.

Geometry - Example Problems

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Nov 6, 2012 ... 11. solution Find the value of x if the area of the triangle formed by (10,2),(-3,-4),(x ... 20. solution Find the equation of the locus of points which are 5 units away from A(4,-3). .... Solution Find the point on the straight line 3x+y+4=0\, ..... 130. solution Find the equation of a circle which passes through the ori...

Triangles / Polygons name Lesson 3-1 - Henrico

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... 11-20. 11. If m∠1=130°and m∠3=24°, find the value of each numbered angle. ... If m∠1=x+30, m∠4=5x-14, and m∠3=3x+20, find the value of x and of each ...

Linear equations - Wiley

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Jul 5, 2014 ... Solving a linear equation means finding a value for the pronumeral that ... 100 − 20. = 80. 2 Substitute 10 for x in the right-hand side. RHS = 9x − 10 ... If two operations have been performed on the pronumeral, it is ... 3 Write the value of x. x = 18 d 1 Multiply both sides by 5. d. 3x. 5 ...... 130 Maths Quest 9.

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Exterior Angles of a Triangle - RegentsPrep

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The theorem above states that if <4 is an exterior angle, its measure is equal to the ... interior angles are represented by 4x + 5, and 3x + 20, find the value of x.

course ii - JMap

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Aug 13, 2002 ... is a transversal, m∠AFG = x, and m∠CGF = 3x20. Find the value of x. 5 A flagpole casts a shadow 160 feet long. At the same time, a boy ...

CHAPTER 13 SOLVING SIMULTANEOUS EQUATIONS

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Solve the simultaneous equations 3x – 2y = 10. 5x + y = 21. 3x – 2y ..... 35. 20. = 1. 3. 4. 8. If 5x –. 3 y. = 1 and x +. 4 y. = 5. 2 find the value of. 1 xy y. +. If 5x –. 3 y.