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    How to solve for the variable "X"

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    How to solve for the variable "X"

    The following problems have tripped me up. I can't seem to figure out how to solve them. I've tried, several times, and had my algebra teacher explain them, but I still can't get the answers.

    3x - 11 = 6
    2x - 7 = 3 + x
    3 + 3x = 9 + 2x
    3x - 3 = 6 + x

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    https://brainmass.com/math/basic-algebra/how-solve-variable-37886

    Solution Preview

    Basic Tips for Solving Equations

    Suppose I start with something like

    x = 5

    That's no fun, is it? There's nothing to figure out. But I can multiply both sides of the equation by 3 without changing the truth of the equation, right?

    3x = 15

    And there are a lot of different ways I can write 3:

    3 = 1 + 2

    = 7 - 4

    = -5 + 8

    So I can change my equation to look like this:

    3x = 15

    x(3) = 15

    x(7 - 4) = 15

    7x - 4x = 15

    And since I can add or subtract anything on both sides of an equation without changing the truth of the equation, I can add 4x to both sides:

    7x - 4x = 15

    7x - 4x ...

    Solution Summary

    This solution assists to solve for the variable "X" for the problems in a step-by-step process.

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