7(s-7)-5(s+8)=-87

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Solution for 7(s-7)-5(s+8)=-87 equation:


Simplifying
7(s + -7) + -5(s + 8) = -87

Reorder the terms:
7(-7 + s) + -5(s + 8) = -87
(-7 * 7 + s * 7) + -5(s + 8) = -87
(-49 + 7s) + -5(s + 8) = -87

Reorder the terms:
-49 + 7s + -5(8 + s) = -87
-49 + 7s + (8 * -5 + s * -5) = -87
-49 + 7s + (-40 + -5s) = -87

Reorder the terms:
-49 + -40 + 7s + -5s = -87

Combine like terms: -49 + -40 = -89
-89 + 7s + -5s = -87

Combine like terms: 7s + -5s = 2s
-89 + 2s = -87

Solving
-89 + 2s = -87

Solving for variable 's'.

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

Add '89' to each side of the equation.
-89 + 89 + 2s = -87 + 89

Combine like terms: -89 + 89 = 0
0 + 2s = -87 + 89
2s = -87 + 89

Combine like terms: -87 + 89 = 2
2s = 2

Divide each side by '2'.
s = 1

Simplifying
s = 1

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