2x-7+x-7=31

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Solution for 2x-7+x-7=31 equation:


Simplifying
2x + -7 + x + -7 = 31

Reorder the terms:
-7 + -7 + 2x + x = 31

Combine like terms: -7 + -7 = -14
-14 + 2x + x = 31

Combine like terms: 2x + x = 3x
-14 + 3x = 31

Solving
-14 + 3x = 31

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '14' to each side of the equation.
-14 + 14 + 3x = 31 + 14

Combine like terms: -14 + 14 = 0
0 + 3x = 31 + 14
3x = 31 + 14

Combine like terms: 31 + 14 = 45
3x = 45

Divide each side by '3'.
x = 15

Simplifying
x = 15

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