28-x=3x-84

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Solution for 28-x=3x-84 equation:


Simplifying
28 + -1x = 3x + -84

Reorder the terms:
28 + -1x = -84 + 3x

Solving
28 + -1x = -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.
28 + -1x + -3x = -84 + 3x + -3x

Combine like terms: -1x + -3x = -4x
28 + -4x = -84 + 3x + -3x

Combine like terms: 3x + -3x = 0
28 + -4x = -84 + 0
28 + -4x = -84

Add '-28' to each side of the equation.
28 + -28 + -4x = -84 + -28

Combine like terms: 28 + -28 = 0
0 + -4x = -84 + -28
-4x = -84 + -28

Combine like terms: -84 + -28 = -112
-4x = -112

Divide each side by '-4'.
x = 28

Simplifying
x = 28

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