-20=-7-x

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Solution for -20=-7-x equation:


Simplifying
-20 = -7 + -1x

Solving
-20 = -7 + -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.
-20 + x = -7 + -1x + x

Combine like terms: -1x + x = 0
-20 + x = -7 + 0
-20 + x = -7

Add '20' to each side of the equation.
-20 + 20 + x = -7 + 20

Combine like terms: -20 + 20 = 0
0 + x = -7 + 20
x = -7 + 20

Combine like terms: -7 + 20 = 13
x = 13

Simplifying
x = 13

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