12-3(x+7)=8-x-11

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Solution for 12-3(x+7)=8-x-11 equation:


Simplifying
12 + -3(x + 7) = 8 + -1x + -11

Reorder the terms:
12 + -3(7 + x) = 8 + -1x + -11
12 + (7 * -3 + x * -3) = 8 + -1x + -11
12 + (-21 + -3x) = 8 + -1x + -11

Combine like terms: 12 + -21 = -9
-9 + -3x = 8 + -1x + -11

Reorder the terms:
-9 + -3x = 8 + -11 + -1x

Combine like terms: 8 + -11 = -3
-9 + -3x = -3 + -1x

Solving
-9 + -3x = -3 + -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.
-9 + -3x + x = -3 + -1x + x

Combine like terms: -3x + x = -2x
-9 + -2x = -3 + -1x + x

Combine like terms: -1x + x = 0
-9 + -2x = -3 + 0
-9 + -2x = -3

Add '9' to each side of the equation.
-9 + 9 + -2x = -3 + 9

Combine like terms: -9 + 9 = 0
0 + -2x = -3 + 9
-2x = -3 + 9

Combine like terms: -3 + 9 = 6
-2x = 6

Divide each side by '-2'.
x = -3

Simplifying
x = -3

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