5x-4+4x=87-4x

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Solution for 5x-4+4x=87-4x equation:


Simplifying
5x + -4 + 4x = 87 + -4x

Reorder the terms:
-4 + 5x + 4x = 87 + -4x

Combine like terms: 5x + 4x = 9x
-4 + 9x = 87 + -4x

Solving
-4 + 9x = 87 + -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.
-4 + 9x + 4x = 87 + -4x + 4x

Combine like terms: 9x + 4x = 13x
-4 + 13x = 87 + -4x + 4x

Combine like terms: -4x + 4x = 0
-4 + 13x = 87 + 0
-4 + 13x = 87

Add '4' to each side of the equation.
-4 + 4 + 13x = 87 + 4

Combine like terms: -4 + 4 = 0
0 + 13x = 87 + 4
13x = 87 + 4

Combine like terms: 87 + 4 = 91
13x = 91

Divide each side by '13'.
x = 7

Simplifying
x = 7

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