-3(5s-5)-15=-3(7s+6)-3

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Solution for -3(5s-5)-15=-3(7s+6)-3 equation: 


Simplifying
-3(5s + -5) + -15 = -3(7s + 6) + -3

Reorder the terms:
-3(-5 + 5s) + -15 = -3(7s + 6) + -3
(-5 * -3 + 5s * -3) + -15 = -3(7s + 6) + -3
(15 + -15s) + -15 = -3(7s + 6) + -3

Reorder the terms:
15 + -15 + -15s = -3(7s + 6) + -3

Combine like terms: 15 + -15 = 0
0 + -15s = -3(7s + 6) + -3
-15s = -3(7s + 6) + -3

Reorder the terms:
-15s = -3(6 + 7s) + -3
-15s = (6 * -3 + 7s * -3) + -3
-15s = (-18 + -21s) + -3

Reorder the terms:
-15s = -18 + -3 + -21s

Combine like terms: -18 + -3 = -21
-15s = -21 + -21s

Solving
-15s = -21 + -21s

Solving for variable 's'.

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

Add '21s' to each side of the equation.
-15s + 21s = -21 + -21s + 21s

Combine like terms: -15s + 21s = 6s
6s = -21 + -21s + 21s

Combine like terms: -21s + 21s = 0
6s = -21 + 0
6s = -21

Divide each side by '6'.
s = -3.5

Simplifying
s = -3.5

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