3(7-2x)=8-(x+12)

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Solution for 3(7-2x)=8-(x+12) equation:


Simplifying
3(7 + -2x) = 8 + -1(x + 12)
(7 * 3 + -2x * 3) = 8 + -1(x + 12)
(21 + -6x) = 8 + -1(x + 12)

Reorder the terms:
21 + -6x = 8 + -1(12 + x)
21 + -6x = 8 + (12 * -1 + x * -1)
21 + -6x = 8 + (-12 + -1x)

Combine like terms: 8 + -12 = -4
21 + -6x = -4 + -1x

Solving
21 + -6x = -4 + -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.
21 + -6x + x = -4 + -1x + x

Combine like terms: -6x + x = -5x
21 + -5x = -4 + -1x + x

Combine like terms: -1x + x = 0
21 + -5x = -4 + 0
21 + -5x = -4

Add '-21' to each side of the equation.
21 + -21 + -5x = -4 + -21

Combine like terms: 21 + -21 = 0
0 + -5x = -4 + -21
-5x = -4 + -21

Combine like terms: -4 + -21 = -25
-5x = -25

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

Simplifying
x = 5

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