90=6x-1+3x-8

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Solution for 90=6x-1+3x-8 equation:


Simplifying
90 = 6x + -1 + 3x + -8

Reorder the terms:
90 = -1 + -8 + 6x + 3x

Combine like terms: -1 + -8 = -9
90 = -9 + 6x + 3x

Combine like terms: 6x + 3x = 9x
90 = -9 + 9x

Solving
90 = -9 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
90 + -9x = -9 + 9x + -9x

Combine like terms: 9x + -9x = 0
90 + -9x = -9 + 0
90 + -9x = -9

Add '-90' to each side of the equation.
90 + -90 + -9x = -9 + -90

Combine like terms: 90 + -90 = 0
0 + -9x = -9 + -90
-9x = -9 + -90

Combine like terms: -9 + -90 = -99
-9x = -99

Divide each side by '-9'.
x = 11

Simplifying
x = 11

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