21-x+2x-3+x-5=180

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Solution for 21-x+2x-3+x-5=180 equation: 


Simplifying
21 + -1x + 2x + -3 + x + -5 = 180

Reorder the terms:
21 + -3 + -5 + -1x + 2x + x = 180

Combine like terms: 21 + -3 = 18
18 + -5 + -1x + 2x + x = 180

Combine like terms: 18 + -5 = 13
13 + -1x + 2x + x = 180

Combine like terms: -1x + 2x = 1x
13 + 1x + x = 180

Combine like terms: 1x + x = 2x
13 + 2x = 180

Solving
13 + 2x = 180

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + 2x = 180 + -13

Combine like terms: 13 + -13 = 0
0 + 2x = 180 + -13
2x = 180 + -13

Combine like terms: 180 + -13 = 167
2x = 167

Divide each side by '2'.
x = 83.5

Simplifying
x = 83.5

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