12x+x=-9+10x

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Solution for 12x+x=-9+10x equation: 


Simplifying
12x + x = -9 + 10x

Combine like terms: 12x + x = 13x
13x = -9 + 10x

Solving
13x = -9 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
13x + -10x = -9 + 10x + -10x

Combine like terms: 13x + -10x = 3x
3x = -9 + 10x + -10x

Combine like terms: 10x + -10x = 0
3x = -9 + 0
3x = -9

Divide each side by '3'.
x = -3

Simplifying
x = -3

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