-2-7=-8+x

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Solution for -2-7=-8+x equation:


Simplifying
-2 + -7 = -8 + x

Combine like terms: -2 + -7 = -9
-9 = -8 + x

Solving
-9 = -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.
-9 + -1x = -8 + x + -1x

Combine like terms: x + -1x = 0
-9 + -1x = -8 + 0
-9 + -1x = -8

Add '9' to each side of the equation.
-9 + 9 + -1x = -8 + 9

Combine like terms: -9 + 9 = 0
0 + -1x = -8 + 9
-1x = -8 + 9

Combine like terms: -8 + 9 = 1
-1x = 1

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

Simplifying
x = -1

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