18-(2s+7)=12

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Solution for 18-(2s+7)=12 equation:


Simplifying
18 + -1(2s + 7) = 12

Reorder the terms:
18 + -1(7 + 2s) = 12
18 + (7 * -1 + 2s * -1) = 12
18 + (-7 + -2s) = 12

Combine like terms: 18 + -7 = 11
11 + -2s = 12

Solving
11 + -2s = 12

Solving for variable 's'.

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

Add '-11' to each side of the equation.
11 + -11 + -2s = 12 + -11

Combine like terms: 11 + -11 = 0
0 + -2s = 12 + -11
-2s = 12 + -11

Combine like terms: 12 + -11 = 1
-2s = 1

Divide each side by '-2'.
s = -0.5

Simplifying
s = -0.5

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