2(x-1)-7=15

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Solution for 2(x-1)-7=15 equation:


Simplifying
2(x + -1) + -7 = 15

Reorder the terms:
2(-1 + x) + -7 = 15
(-1 * 2 + x * 2) + -7 = 15
(-2 + 2x) + -7 = 15

Reorder the terms:
-2 + -7 + 2x = 15

Combine like terms: -2 + -7 = -9
-9 + 2x = 15

Solving
-9 + 2x = 15

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 2x = 15 + 9

Combine like terms: -9 + 9 = 0
0 + 2x = 15 + 9
2x = 15 + 9

Combine like terms: 15 + 9 = 24
2x = 24

Divide each side by '2'.
x = 12

Simplifying
x = 12

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