x+2x-57=90

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Solution for x+2x-57=90 equation:


Simplifying
x + 2x + -57 = 90

Reorder the terms:
-57 + x + 2x = 90

Combine like terms: x + 2x = 3x
-57 + 3x = 90

Solving
-57 + 3x = 90

Solving for variable 'x'.

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

Add '57' to each side of the equation.
-57 + 57 + 3x = 90 + 57

Combine like terms: -57 + 57 = 0
0 + 3x = 90 + 57
3x = 90 + 57

Combine like terms: 90 + 57 = 147
3x = 147

Divide each side by '3'.
x = 49

Simplifying
x = 49

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