20-x=4x+5

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Solution for 20-x=4x+5 equation:


Simplifying
20 + -1x = 4x + 5

Reorder the terms:
20 + -1x = 5 + 4x

Solving
20 + -1x = 5 + 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 + -1x + -4x = 5 + 4x + -4x

Combine like terms: -1x + -4x = -5x
20 + -5x = 5 + 4x + -4x

Combine like terms: 4x + -4x = 0
20 + -5x = 5 + 0
20 + -5x = 5

Add '-20' to each side of the equation.
20 + -20 + -5x = 5 + -20

Combine like terms: 20 + -20 = 0
0 + -5x = 5 + -20
-5x = 5 + -20

Combine like terms: 5 + -20 = -15
-5x = -15

Divide each side by '-5'.
x = 3

Simplifying
x = 3

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