-12=-7-7-2s

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Solution for -12=-7-7-2s equation:


Simplifying
-12 = -7 + -7 + -2s

Combine like terms: -7 + -7 = -14
-12 = -14 + -2s

Solving
-12 = -14 + -2s

Solving for variable 's'.

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

Add '2s' to each side of the equation.
-12 + 2s = -14 + -2s + 2s

Combine like terms: -2s + 2s = 0
-12 + 2s = -14 + 0
-12 + 2s = -14

Add '12' to each side of the equation.
-12 + 12 + 2s = -14 + 12

Combine like terms: -12 + 12 = 0
0 + 2s = -14 + 12
2s = -14 + 12

Combine like terms: -14 + 12 = -2
2s = -2

Divide each side by '2'.
s = -1

Simplifying
s = -1

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