7+2s-5=8s+20-4s

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Solution for 7+2s-5=8s+20-4s equation:


Simplifying
7 + 2s + -5 = 8s + 20 + -4s

Reorder the terms:
7 + -5 + 2s = 8s + 20 + -4s

Combine like terms: 7 + -5 = 2
2 + 2s = 8s + 20 + -4s

Reorder the terms:
2 + 2s = 20 + 8s + -4s

Combine like terms: 8s + -4s = 4s
2 + 2s = 20 + 4s

Solving
2 + 2s = 20 + 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.
2 + 2s + -4s = 20 + 4s + -4s

Combine like terms: 2s + -4s = -2s
2 + -2s = 20 + 4s + -4s

Combine like terms: 4s + -4s = 0
2 + -2s = 20 + 0
2 + -2s = 20

Add '-2' to each side of the equation.
2 + -2 + -2s = 20 + -2

Combine like terms: 2 + -2 = 0
0 + -2s = 20 + -2
-2s = 20 + -2

Combine like terms: 20 + -2 = 18
-2s = 18

Divide each side by '-2'.
s = -9

Simplifying
s = -9

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