-9(s+5)-9(s-7)=

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Solution for -9(s+5)-9(s-7)= equation:


Simplifying
-9(s + 5) + -9(s + -7) = 0

Reorder the terms:
-9(5 + s) + -9(s + -7) = 0
(5 * -9 + s * -9) + -9(s + -7) = 0
(-45 + -9s) + -9(s + -7) = 0

Reorder the terms:
-45 + -9s + -9(-7 + s) = 0
-45 + -9s + (-7 * -9 + s * -9) = 0
-45 + -9s + (63 + -9s) = 0

Reorder the terms:
-45 + 63 + -9s + -9s = 0

Combine like terms: -45 + 63 = 18
18 + -9s + -9s = 0

Combine like terms: -9s + -9s = -18s
18 + -18s = 0

Solving
18 + -18s = 0

Solving for variable 's'.

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

Add '-18' to each side of the equation.
18 + -18 + -18s = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -18s = 0 + -18
-18s = 0 + -18

Combine like terms: 0 + -18 = -18
-18s = -18

Divide each side by '-18'.
s = 1

Simplifying
s = 1

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