-13s+16s-12s+12s+-s-9=13

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Solution for -13s+16s-12s+12s+-s-9=13 equation:


Simplifying
-13s + 16s + -12s + 12s + -1s + -9 = 13

Reorder the terms:
-9 + -13s + 16s + -12s + 12s + -1s = 13

Combine like terms: -13s + 16s = 3s
-9 + 3s + -12s + 12s + -1s = 13

Combine like terms: 3s + -12s = -9s
-9 + -9s + 12s + -1s = 13

Combine like terms: -9s + 12s = 3s
-9 + 3s + -1s = 13

Combine like terms: 3s + -1s = 2s
-9 + 2s = 13

Solving
-9 + 2s = 13

Solving for variable 's'.

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

Add '9' to each side of the equation.
-9 + 9 + 2s = 13 + 9

Combine like terms: -9 + 9 = 0
0 + 2s = 13 + 9
2s = 13 + 9

Combine like terms: 13 + 9 = 22
2s = 22

Divide each side by '2'.
s = 11

Simplifying
s = 11

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