3(5-2s)=s-20

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Solution for 3(5-2s)=s-20 equation: 


Simplifying
3(5 + -2s) = s + -20
(5 * 3 + -2s * 3) = s + -20
(15 + -6s) = s + -20

Reorder the terms:
15 + -6s = -20 + s

Solving
15 + -6s = -20 + s

Solving for variable 's'.

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

Add '-1s' to each side of the equation.
15 + -6s + -1s = -20 + s + -1s

Combine like terms: -6s + -1s = -7s
15 + -7s = -20 + s + -1s

Combine like terms: s + -1s = 0
15 + -7s = -20 + 0
15 + -7s = -20

Add '-15' to each side of the equation.
15 + -15 + -7s = -20 + -15

Combine like terms: 15 + -15 = 0
0 + -7s = -20 + -15
-7s = -20 + -15

Combine like terms: -20 + -15 = -35
-7s = -35

Divide each side by '-7'.
s = 5

Simplifying
s = 5

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