31+(2s-10)+(2s-13)=180

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Solution for 31+(2s-10)+(2s-13)=180 equation:


Simplifying
31 + (2s + -10) + (2s + -13) = 180

Reorder the terms:
31 + (-10 + 2s) + (2s + -13) = 180

Remove parenthesis around (-10 + 2s)
31 + -10 + 2s + (2s + -13) = 180

Reorder the terms:
31 + -10 + 2s + (-13 + 2s) = 180

Remove parenthesis around (-13 + 2s)
31 + -10 + 2s + -13 + 2s = 180

Reorder the terms:
31 + -10 + -13 + 2s + 2s = 180

Combine like terms: 31 + -10 = 21
21 + -13 + 2s + 2s = 180

Combine like terms: 21 + -13 = 8
8 + 2s + 2s = 180

Combine like terms: 2s + 2s = 4s
8 + 4s = 180

Solving
8 + 4s = 180

Solving for variable 's'.

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

Add '-8' to each side of the equation.
8 + -8 + 4s = 180 + -8

Combine like terms: 8 + -8 = 0
0 + 4s = 180 + -8
4s = 180 + -8

Combine like terms: 180 + -8 = 172
4s = 172

Divide each side by '4'.
s = 43

Simplifying
s = 43

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