6x+12=84-3x

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Solution for 6x+12=84-3x equation:


Simplifying
6x + 12 = 84 + -3x

Reorder the terms:
12 + 6x = 84 + -3x

Solving
12 + 6x = 84 + -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.
12 + 6x + 3x = 84 + -3x + 3x

Combine like terms: 6x + 3x = 9x
12 + 9x = 84 + -3x + 3x

Combine like terms: -3x + 3x = 0
12 + 9x = 84 + 0
12 + 9x = 84

Add '-12' to each side of the equation.
12 + -12 + 9x = 84 + -12

Combine like terms: 12 + -12 = 0
0 + 9x = 84 + -12
9x = 84 + -12

Combine like terms: 84 + -12 = 72
9x = 72

Divide each side by '9'.
x = 8

Simplifying
x = 8

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