-7-(-7)=128+2x

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Solution for -7-(-7)=128+2x equation: 


Simplifying
-7 + -1(-7) = 128 + 2x

Multiply -1 * -7
-7 + 7 = 128 + 2x

Combine like terms: -7 + 7 = 0
0 = 128 + 2x

Solving
0 = 128 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
0 + -2x = 128 + 2x + -2x
Remove the zero:
-2x = 128 + 2x + -2x

Combine like terms: 2x + -2x = 0
-2x = 128 + 0
-2x = 128

Divide each side by '-2'.
x = -64

Simplifying
x = -64

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