-12-9(7s+20)=-8(10s+7)

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Solution for -12-9(7s+20)=-8(10s+7) equation:


Simplifying
-12 + -9(7s + 20) = -8(10s + 7)

Reorder the terms:
-12 + -9(20 + 7s) = -8(10s + 7)
-12 + (20 * -9 + 7s * -9) = -8(10s + 7)
-12 + (-180 + -63s) = -8(10s + 7)

Combine like terms: -12 + -180 = -192
-192 + -63s = -8(10s + 7)

Reorder the terms:
-192 + -63s = -8(7 + 10s)
-192 + -63s = (7 * -8 + 10s * -8)
-192 + -63s = (-56 + -80s)

Solving
-192 + -63s = -56 + -80s

Solving for variable 's'.

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

Add '80s' to each side of the equation.
-192 + -63s + 80s = -56 + -80s + 80s

Combine like terms: -63s + 80s = 17s
-192 + 17s = -56 + -80s + 80s

Combine like terms: -80s + 80s = 0
-192 + 17s = -56 + 0
-192 + 17s = -56

Add '192' to each side of the equation.
-192 + 192 + 17s = -56 + 192

Combine like terms: -192 + 192 = 0
0 + 17s = -56 + 192
17s = -56 + 192

Combine like terms: -56 + 192 = 136
17s = 136

Divide each side by '17'.
s = 8

Simplifying
s = 8

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