2s-9+2s-20+s+7=180

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Solution for 2s-9+2s-20+s+7=180 equation: 


Simplifying
2s + -9 + 2s + -20 + s + 7 = 180

Reorder the terms:
-9 + -20 + 7 + 2s + 2s + s = 180

Combine like terms: -9 + -20 = -29
-29 + 7 + 2s + 2s + s = 180

Combine like terms: -29 + 7 = -22
-22 + 2s + 2s + s = 180

Combine like terms: 2s + 2s = 4s
-22 + 4s + s = 180

Combine like terms: 4s + s = 5s
-22 + 5s = 180

Solving
-22 + 5s = 180

Solving for variable 's'.

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

Add '22' to each side of the equation.
-22 + 22 + 5s = 180 + 22

Combine like terms: -22 + 22 = 0
0 + 5s = 180 + 22
5s = 180 + 22

Combine like terms: 180 + 22 = 202
5s = 202

Divide each side by '5'.
s = 40.4

Simplifying
s = 40.4

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