18+3(90-x)=90

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Solution for 18+3(90-x)=90 equation:


Simplifying
18 + 3(90 + -1x) = 90
18 + (90 * 3 + -1x * 3) = 90
18 + (270 + -3x) = 90

Combine like terms: 18 + 270 = 288
288 + -3x = 90

Solving
288 + -3x = 90

Solving for variable 'x'.

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

Add '-288' to each side of the equation.
288 + -288 + -3x = 90 + -288

Combine like terms: 288 + -288 = 0
0 + -3x = 90 + -288
-3x = 90 + -288

Combine like terms: 90 + -288 = -198
-3x = -198

Divide each side by '-3'.
x = 66

Simplifying
x = 66

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