4x-15=20+-1x

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Solution for 4x-15=20+-1x equation:


Simplifying
4x + -15 = 20 + -1x

Reorder the terms:
-15 + 4x = 20 + -1x

Solving
-15 + 4x = 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 + 4x + x = 20 + -1x + x

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

Combine like terms: -1x + x = 0
-15 + 5x = 20 + 0
-15 + 5x = 20

Add '15' to each side of the equation.
-15 + 15 + 5x = 20 + 15

Combine like terms: -15 + 15 = 0
0 + 5x = 20 + 15
5x = 20 + 15

Combine like terms: 20 + 15 = 35
5x = 35

Divide each side by '5'.
x = 7

Simplifying
x = 7

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