5x+12+2x+21+8x+15=180

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Solution for 5x+12+2x+21+8x+15=180 equation: 


Simplifying
5x + 12 + 2x + 21 + 8x + 15 = 180

Reorder the terms:
12 + 21 + 15 + 5x + 2x + 8x = 180

Combine like terms: 12 + 21 = 33
33 + 15 + 5x + 2x + 8x = 180

Combine like terms: 33 + 15 = 48
48 + 5x + 2x + 8x = 180

Combine like terms: 5x + 2x = 7x
48 + 7x + 8x = 180

Combine like terms: 7x + 8x = 15x
48 + 15x = 180

Solving
48 + 15x = 180

Solving for variable 'x'.

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

Add '-48' to each side of the equation.
48 + -48 + 15x = 180 + -48

Combine like terms: 48 + -48 = 0
0 + 15x = 180 + -48
15x = 180 + -48

Combine like terms: 180 + -48 = 132
15x = 132

Divide each side by '15'.
x = 8.8

Simplifying
x = 8.8

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