3x+11+5x-11+4x+21=180

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Solution for 3x+11+5x-11+4x+21=180 equation: 


Simplifying
3x + 11 + 5x + -11 + 4x + 21 = 180

Reorder the terms:
11 + -11 + 21 + 3x + 5x + 4x = 180

Combine like terms: 11 + -11 = 0
0 + 21 + 3x + 5x + 4x = 180
21 + 3x + 5x + 4x = 180

Combine like terms: 3x + 5x = 8x
21 + 8x + 4x = 180

Combine like terms: 8x + 4x = 12x
21 + 12x = 180

Solving
21 + 12x = 180

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 12x = 180 + -21

Combine like terms: 21 + -21 = 0
0 + 12x = 180 + -21
12x = 180 + -21

Combine like terms: 180 + -21 = 159
12x = 159

Divide each side by '12'.
x = 13.25

Simplifying
x = 13.25

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