-3(s-7)=5s-9

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Solution for -3(s-7)=5s-9 equation:


Simplifying
-3(s + -7) = 5s + -9

Reorder the terms:
-3(-7 + s) = 5s + -9
(-7 * -3 + s * -3) = 5s + -9
(21 + -3s) = 5s + -9

Reorder the terms:
21 + -3s = -9 + 5s

Solving
21 + -3s = -9 + 5s

Solving for variable 's'.

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

Add '-5s' to each side of the equation.
21 + -3s + -5s = -9 + 5s + -5s

Combine like terms: -3s + -5s = -8s
21 + -8s = -9 + 5s + -5s

Combine like terms: 5s + -5s = 0
21 + -8s = -9 + 0
21 + -8s = -9

Add '-21' to each side of the equation.
21 + -21 + -8s = -9 + -21

Combine like terms: 21 + -21 = 0
0 + -8s = -9 + -21
-8s = -9 + -21

Combine like terms: -9 + -21 = -30
-8s = -30

Divide each side by '-8'.
s = 3.75

Simplifying
s = 3.75

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