12x+84=28x-252

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Solution for 12x+84=28x-252 equation:


Simplifying
12x + 84 = 28x + -252

Reorder the terms:
84 + 12x = 28x + -252

Reorder the terms:
84 + 12x = -252 + 28x

Solving
84 + 12x = -252 + 28x

Solving for variable 'x'.

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

Add '-28x' to each side of the equation.
84 + 12x + -28x = -252 + 28x + -28x

Combine like terms: 12x + -28x = -16x
84 + -16x = -252 + 28x + -28x

Combine like terms: 28x + -28x = 0
84 + -16x = -252 + 0
84 + -16x = -252

Add '-84' to each side of the equation.
84 + -84 + -16x = -252 + -84

Combine like terms: 84 + -84 = 0
0 + -16x = -252 + -84
-16x = -252 + -84

Combine like terms: -252 + -84 = -336
-16x = -336

Divide each side by '-16'.
x = 21

Simplifying
x = 21

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