x+20=4x-28

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Solution for x+20=4x-28 equation:


Simplifying
x + 20 = 4x + -28

Reorder the terms:
20 + x = 4x + -28

Reorder the terms:
20 + x = -28 + 4x

Solving
20 + x = -28 + 4x

Solving for variable 'x'.

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

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

Combine like terms: x + -4x = -3x
20 + -3x = -28 + 4x + -4x

Combine like terms: 4x + -4x = 0
20 + -3x = -28 + 0
20 + -3x = -28

Add '-20' to each side of the equation.
20 + -20 + -3x = -28 + -20

Combine like terms: 20 + -20 = 0
0 + -3x = -28 + -20
-3x = -28 + -20

Combine like terms: -28 + -20 = -48
-3x = -48

Divide each side by '-3'.
x = 16

Simplifying
x = 16

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