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

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


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

Reorder the terms:
5x + -3(-7 + x) = 12 + 3x
5x + (-7 * -3 + x * -3) = 12 + 3x
5x + (21 + -3x) = 12 + 3x

Reorder the terms:
21 + 5x + -3x = 12 + 3x

Combine like terms: 5x + -3x = 2x
21 + 2x = 12 + 3x

Solving
21 + 2x = 12 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
21 + 2x + -3x = 12 + 3x + -3x

Combine like terms: 2x + -3x = -1x
21 + -1x = 12 + 3x + -3x

Combine like terms: 3x + -3x = 0
21 + -1x = 12 + 0
21 + -1x = 12

Add '-21' to each side of the equation.
21 + -21 + -1x = 12 + -21

Combine like terms: 21 + -21 = 0
0 + -1x = 12 + -21
-1x = 12 + -21

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

Divide each side by '-1'.
x = 9

Simplifying
x = 9

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