-100-x=131-12x

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Solution for -100-x=131-12x equation:


Simplifying
-100 + -1x = 131 + -12x

Solving
-100 + -1x = 131 + -12x

Solving for variable 'x'.

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

Add '12x' to each side of the equation.
-100 + -1x + 12x = 131 + -12x + 12x

Combine like terms: -1x + 12x = 11x
-100 + 11x = 131 + -12x + 12x

Combine like terms: -12x + 12x = 0
-100 + 11x = 131 + 0
-100 + 11x = 131

Add '100' to each side of the equation.
-100 + 100 + 11x = 131 + 100

Combine like terms: -100 + 100 = 0
0 + 11x = 131 + 100
11x = 131 + 100

Combine like terms: 131 + 100 = 231
11x = 231

Divide each side by '11'.
x = 21

Simplifying
x = 21

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