90-3x=8x+4

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Solution for 90-3x=8x+4 equation:


Simplifying
90 + -3x = 8x + 4

Reorder the terms:
90 + -3x = 4 + 8x

Solving
90 + -3x = 4 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
90 + -3x + -8x = 4 + 8x + -8x

Combine like terms: -3x + -8x = -11x
90 + -11x = 4 + 8x + -8x

Combine like terms: 8x + -8x = 0
90 + -11x = 4 + 0
90 + -11x = 4

Add '-90' to each side of the equation.
90 + -90 + -11x = 4 + -90

Combine like terms: 90 + -90 = 0
0 + -11x = 4 + -90
-11x = 4 + -90

Combine like terms: 4 + -90 = -86
-11x = -86

Divide each side by '-11'.
x = 7.818181818

Simplifying
x = 7.818181818

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