189-x=3(90-x)

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Solution for 189-x=3(90-x) equation:


Simplifying
189 + -1x = 3(90 + -1x)
189 + -1x = (90 * 3 + -1x * 3)
189 + -1x = (270 + -3x)

Solving
189 + -1x = 270 + -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.
189 + -1x + 3x = 270 + -3x + 3x

Combine like terms: -1x + 3x = 2x
189 + 2x = 270 + -3x + 3x

Combine like terms: -3x + 3x = 0
189 + 2x = 270 + 0
189 + 2x = 270

Add '-189' to each side of the equation.
189 + -189 + 2x = 270 + -189

Combine like terms: 189 + -189 = 0
0 + 2x = 270 + -189
2x = 270 + -189

Combine like terms: 270 + -189 = 81
2x = 81

Divide each side by '2'.
x = 40.5

Simplifying
x = 40.5

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