20-3x=x+4

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Solution for 20-3x=x+4 equation:


Simplifying
20 + -3x = x + 4

Reorder the terms:
20 + -3x = 4 + x

Solving
20 + -3x = 4 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
20 + -3x + -1x = 4 + x + -1x

Combine like terms: -3x + -1x = -4x
20 + -4x = 4 + x + -1x

Combine like terms: x + -1x = 0
20 + -4x = 4 + 0
20 + -4x = 4

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

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

Combine like terms: 4 + -20 = -16
-4x = -16

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

Simplifying
x = 4

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