8x+9x-4x-5=86

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Solution for 8x+9x-4x-5=86 equation:


Simplifying
8x + 9x + -4x + -5 = 86

Reorder the terms:
-5 + 8x + 9x + -4x = 86

Combine like terms: 8x + 9x = 17x
-5 + 17x + -4x = 86

Combine like terms: 17x + -4x = 13x
-5 + 13x = 86

Solving
-5 + 13x = 86

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + 13x = 86 + 5

Combine like terms: -5 + 5 = 0
0 + 13x = 86 + 5
13x = 86 + 5

Combine like terms: 86 + 5 = 91
13x = 91

Divide each side by '13'.
x = 7

Simplifying
x = 7

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