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How do you solve 3/1-x=4/1+4

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try using this thing: http://www.free-online-calculator-use.com/algebra-calculator.html

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thank you soo much. big help
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To solve 3/1-x=4/1+4, to cross multiply each of the equation with the denominator values. Therefore, 3/1 - x = 4/1+ 4 = 4(1 - x) = 3(1 + 4) = 4 - 4x = 3 + 12. Then, -4x = 15 - 4, -4x = 11, dividing both sides by -4 to get x = 11/-4 = -2 3/4.

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thank you
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Do you mean
3/(1-x) = 4/(1+4)
3/(1-x) = 4/5
(3)(5) = 4(1-x)
15 = 4 - 4x
11 = -4x
-11/4 = x ANSWER 1
Or did you mean
3/1 - x = 4/1 + 4
3 - x = 8
-x = 5
x = -5. ANSWER 2

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