-20s+4s-20=-4(-s-15)

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Solution for -20s+4s-20=-4(-s-15) equation:


Simplifying
-20s + 4s + -20 = -4(-1s + -15)

Reorder the terms:
-20 + -20s + 4s = -4(-1s + -15)

Combine like terms: -20s + 4s = -16s
-20 + -16s = -4(-1s + -15)

Reorder the terms:
-20 + -16s = -4(-15 + -1s)
-20 + -16s = (-15 * -4 + -1s * -4)
-20 + -16s = (60 + 4s)

Solving
-20 + -16s = 60 + 4s

Solving for variable 's'.

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

Add '-4s' to each side of the equation.
-20 + -16s + -4s = 60 + 4s + -4s

Combine like terms: -16s + -4s = -20s
-20 + -20s = 60 + 4s + -4s

Combine like terms: 4s + -4s = 0
-20 + -20s = 60 + 0
-20 + -20s = 60

Add '20' to each side of the equation.
-20 + 20 + -20s = 60 + 20

Combine like terms: -20 + 20 = 0
0 + -20s = 60 + 20
-20s = 60 + 20

Combine like terms: 60 + 20 = 80
-20s = 80

Divide each side by '-20'.
s = -4

Simplifying
s = -4

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