57+3x=90

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Solution for 57+3x=90 equation: 


Simplifying
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 = 33
3x = 33

Divide each side by '3'.
x = 11

Simplifying
x = 11

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