15=4x-5x+20

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Solution for 15=4x-5x+20 equation:


Simplifying
15 = 4x + -5x + 20

Reorder the terms:
15 = 20 + 4x + -5x

Combine like terms: 4x + -5x = -1x
15 = 20 + -1x

Solving
15 = 20 + -1x

Solving for variable 'x'.

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

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

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

Add '-15' to each side of the equation.
15 + -15 + x = 20 + -15

Combine like terms: 15 + -15 = 0
0 + x = 20 + -15
x = 20 + -15

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

Simplifying
x = 5

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