3x-12=5(x-3-7-2x-7)

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Solution for 3x-12=5(x-3-7-2x-7) equation:


Simplifying
3x + -12 = 5(x + -3 + -7 + -2x + -7)

Reorder the terms:
-12 + 3x = 5(x + -3 + -7 + -2x + -7)

Reorder the terms:
-12 + 3x = 5(-3 + -7 + -7 + x + -2x)

Combine like terms: -3 + -7 = -10
-12 + 3x = 5(-10 + -7 + x + -2x)

Combine like terms: -10 + -7 = -17
-12 + 3x = 5(-17 + x + -2x)

Combine like terms: x + -2x = -1x
-12 + 3x = 5(-17 + -1x)
-12 + 3x = (-17 * 5 + -1x * 5)
-12 + 3x = (-85 + -5x)

Solving
-12 + 3x = -85 + -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
-12 + 3x + 5x = -85 + -5x + 5x

Combine like terms: 3x + 5x = 8x
-12 + 8x = -85 + -5x + 5x

Combine like terms: -5x + 5x = 0
-12 + 8x = -85 + 0
-12 + 8x = -85

Add '12' to each side of the equation.
-12 + 12 + 8x = -85 + 12

Combine like terms: -12 + 12 = 0
0 + 8x = -85 + 12
8x = -85 + 12

Combine like terms: -85 + 12 = -73
8x = -73

Divide each side by '8'.
x = -9.125

Simplifying
x = -9.125

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