-7=-(x+8)

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Solution for -7=-(x+8) equation:


Simplifying
-7 = -1(x + 8)

Reorder the terms:
-7 = -1(8 + x)
-7 = (8 * -1 + x * -1)
-7 = (-8 + -1x)

Solving
-7 = -8 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-7 + x = -8 + -1x + x

Combine like terms: -1x + x = 0
-7 + x = -8 + 0
-7 + x = -8

Add '7' to each side of the equation.
-7 + 7 + x = -8 + 7

Combine like terms: -7 + 7 = 0
0 + x = -8 + 7
x = -8 + 7

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

Simplifying
x = -1

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