-13s+-7s-7s+-15=12

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Solution for -13s+-7s-7s+-15=12 equation:


Simplifying
-13s + -7s + -7s + -15 = 12

Reorder the terms:
-15 + -13s + -7s + -7s = 12

Combine like terms: -13s + -7s = -20s
-15 + -20s + -7s = 12

Combine like terms: -20s + -7s = -27s
-15 + -27s = 12

Solving
-15 + -27s = 12

Solving for variable 's'.

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

Add '15' to each side of the equation.
-15 + 15 + -27s = 12 + 15

Combine like terms: -15 + 15 = 0
0 + -27s = 12 + 15
-27s = 12 + 15

Combine like terms: 12 + 15 = 27
-27s = 27

Divide each side by '-27'.
s = -1

Simplifying
s = -1

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