54+x+2x=75

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Solution for 54+x+2x=75 equation: 


Simplifying
54 + x + 2x = 75

Combine like terms: x + 2x = 3x
54 + 3x = 75

Solving
54 + 3x = 75

Solving for variable 'x'.

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

Add '-54' to each side of the equation.
54 + -54 + 3x = 75 + -54

Combine like terms: 54 + -54 = 0
0 + 3x = 75 + -54
3x = 75 + -54

Combine like terms: 75 + -54 = 21
3x = 21

Divide each side by '3'.
x = 7

Simplifying
x = 7

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