15-2=x+7

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Solution for 15-2=x+7 equation:


Simplifying
15 + -2 = x + 7

Combine like terms: 15 + -2 = 13
13 = x + 7

Reorder the terms:
13 = 7 + x

Solving
13 = 7 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
13 + -1x = 7 + x + -1x

Combine like terms: x + -1x = 0
13 + -1x = 7 + 0
13 + -1x = 7

Add '-13' to each side of the equation.
13 + -13 + -1x = 7 + -13

Combine like terms: 13 + -13 = 0
0 + -1x = 7 + -13
-1x = 7 + -13

Combine like terms: 7 + -13 = -6
-1x = -6

Divide each side by '-1'.
x = 6

Simplifying
x = 6

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