(90-x)=260-3x

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Solution for (90-x)=260-3x equation:


Simplifying
(90 + -1x) = 260 + -3x

Remove parenthesis around (90 + -1x)
90 + -1x = 260 + -3x

Solving
90 + -1x = 260 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
90 + -1x + 3x = 260 + -3x + 3x

Combine like terms: -1x + 3x = 2x
90 + 2x = 260 + -3x + 3x

Combine like terms: -3x + 3x = 0
90 + 2x = 260 + 0
90 + 2x = 260

Add '-90' to each side of the equation.
90 + -90 + 2x = 260 + -90

Combine like terms: 90 + -90 = 0
0 + 2x = 260 + -90
2x = 260 + -90

Combine like terms: 260 + -90 = 170
2x = 170

Divide each side by '2'.
x = 85

Simplifying
x = 85

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