3(80-9x)=x-90

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Solution for 3(80-9x)=x-90 equation:


Simplifying
3(80 + -9x) = x + -90
(80 * 3 + -9x * 3) = x + -90
(240 + -27x) = x + -90

Reorder the terms:
240 + -27x = -90 + x

Solving
240 + -27x = -90 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
240 + -27x + -1x = -90 + x + -1x

Combine like terms: -27x + -1x = -28x
240 + -28x = -90 + x + -1x

Combine like terms: x + -1x = 0
240 + -28x = -90 + 0
240 + -28x = -90

Add '-240' to each side of the equation.
240 + -240 + -28x = -90 + -240

Combine like terms: 240 + -240 = 0
0 + -28x = -90 + -240
-28x = -90 + -240

Combine like terms: -90 + -240 = -330
-28x = -330

Divide each side by '-28'.
x = 11.78571429

Simplifying
x = 11.78571429

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