12-4(x+2)=9+x

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Solution for 12-4(x+2)=9+x equation:


Simplifying
12 + -4(x + 2) = 9 + x

Reorder the terms:
12 + -4(2 + x) = 9 + x
12 + (2 * -4 + x * -4) = 9 + x
12 + (-8 + -4x) = 9 + x

Combine like terms: 12 + -8 = 4
4 + -4x = 9 + x

Solving
4 + -4x = 9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
4 + -4x + -1x = 9 + x + -1x

Combine like terms: -4x + -1x = -5x
4 + -5x = 9 + x + -1x

Combine like terms: x + -1x = 0
4 + -5x = 9 + 0
4 + -5x = 9

Add '-4' to each side of the equation.
4 + -4 + -5x = 9 + -4

Combine like terms: 4 + -4 = 0
0 + -5x = 9 + -4
-5x = 9 + -4

Combine like terms: 9 + -4 = 5
-5x = 5

Divide each side by '-5'.
x = -1

Simplifying
x = -1

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