45+x+3x=180

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Solution for 45+x+3x=180 equation: 


Simplifying
45 + x + 3x = 180

Combine like terms: x + 3x = 4x
45 + 4x = 180

Solving
45 + 4x = 180

Solving for variable 'x'.

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

Add '-45' to each side of the equation.
45 + -45 + 4x = 180 + -45

Combine like terms: 45 + -45 = 0
0 + 4x = 180 + -45
4x = 180 + -45

Combine like terms: 180 + -45 = 135
4x = 135

Divide each side by '4'.
x = 33.75

Simplifying
x = 33.75

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