8x-1=90-5x

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Solution for 8x-1=90-5x equation:


Simplifying
8x + -1 = 90 + -5x

Reorder the terms:
-1 + 8x = 90 + -5x

Solving
-1 + 8x = 90 + -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
-1 + 8x + 5x = 90 + -5x + 5x

Combine like terms: 8x + 5x = 13x
-1 + 13x = 90 + -5x + 5x

Combine like terms: -5x + 5x = 0
-1 + 13x = 90 + 0
-1 + 13x = 90

Add '1' to each side of the equation.
-1 + 1 + 13x = 90 + 1

Combine like terms: -1 + 1 = 0
0 + 13x = 90 + 1
13x = 90 + 1

Combine like terms: 90 + 1 = 91
13x = 91

Divide each side by '13'.
x = 7

Simplifying
x = 7

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