-121-x=12x+100

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Solution for -121-x=12x+100 equation:


Simplifying
-121 + -1x = 12x + 100

Reorder the terms:
-121 + -1x = 100 + 12x

Solving
-121 + -1x = 100 + 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.
-121 + -1x + -12x = 100 + 12x + -12x

Combine like terms: -1x + -12x = -13x
-121 + -13x = 100 + 12x + -12x

Combine like terms: 12x + -12x = 0
-121 + -13x = 100 + 0
-121 + -13x = 100

Add '121' to each side of the equation.
-121 + 121 + -13x = 100 + 121

Combine like terms: -121 + 121 = 0
0 + -13x = 100 + 121
-13x = 100 + 121

Combine like terms: 100 + 121 = 221
-13x = 221

Divide each side by '-13'.
x = -17

Simplifying
x = -17

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