84=12(x+3)

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Solution for 84=12(x+3) equation:


Simplifying
84 = 12(x + 3)

Reorder the terms:
84 = 12(3 + x)
84 = (3 * 12 + x * 12)
84 = (36 + 12x)

Solving
84 = 36 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
84 + -12x = 36 + 12x + -12x

Combine like terms: 12x + -12x = 0
84 + -12x = 36 + 0
84 + -12x = 36

Add '-84' to each side of the equation.
84 + -84 + -12x = 36 + -84

Combine like terms: 84 + -84 = 0
0 + -12x = 36 + -84
-12x = 36 + -84

Combine like terms: 36 + -84 = -48
-12x = -48

Divide each side by '-12'.
x = 4

Simplifying
x = 4

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