-15=-8+x

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Solution for -15=-8+x equation:


Simplifying
-15 = -8 + x

Solving
-15 = -8 + 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.
-15 + -1x = -8 + x + -1x

Combine like terms: x + -1x = 0
-15 + -1x = -8 + 0
-15 + -1x = -8

Add '15' to each side of the equation.
-15 + 15 + -1x = -8 + 15

Combine like terms: -15 + 15 = 0
0 + -1x = -8 + 15
-1x = -8 + 15

Combine like terms: -8 + 15 = 7
-1x = 7

Divide each side by '-1'.
x = -7

Simplifying
x = -7

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