The four steps for solving an equation include the combination of like terms, the isolation of terms containing variables, the isolation of the variable and the substitution of the answer into the original equation to check the answer. The combination of like terms can also be referred to as simplifying. While this is not necessary as a first step, it is much easier to solve an equation when the terms are as simple as possible.
Know MoreA person should combine terms on either side of the equation before trying to solve. For example, if the equation is 2x + 4x = 24x, 2x and 4x should be added together before going any further. This makes the equation 6x = 24x. Isolating terms that contain variables involves getting the variable to one side of the equation. If the equation reads 2 + y = 46, y must stand alone on one side. The 2 must be subtracted from both sides so that the equation reads y = 44.
In some instances, the variable must be isolated, 6 = x/3 for example. Here, x/3 needs to be multiplied by 3 to get x by itself. Lastly, the answer should be plugged into the original equation to fact check. If 44 is put into 2 + y = 46, it would read 2 + 44 = 46, which is correct.
Learn more about AlgebraThe four steps or conditions necessary for natural selection to occur are that more organisms are born than can survive, characteristics vary within a species, variations are inherited, and differences in reproduction and survival are due to variations. All four of these conditions must occur for natural selection to happen.
Full Answer >An equation is a statement declaring that two values are equal. It has an equals sign and expressions on the left and right of the equals sign; the expression on the left and the right are equal.
Full Answer >A mediating variable is a variable that accounts for the relationship between a predictor variable and an outcome variable. Mediator variables explain why or how an effect or relationship between variables occurs.
Full Answer >The leading coefficient is the number that multiplies a variable to the highest degree in the expression. Because polynomials are arranged by degree from highest to lowest, the leading coefficient is the first number that appears in the expression, unless the coefficient is 1.
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