9+2s-7=9s+20-4s

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Solution for 9+2s-7=9s+20-4s equation:


Simplifying
9 + 2s + -7 = 9s + 20 + -4s

Reorder the terms:
9 + -7 + 2s = 9s + 20 + -4s

Combine like terms: 9 + -7 = 2
2 + 2s = 9s + 20 + -4s

Reorder the terms:
2 + 2s = 20 + 9s + -4s

Combine like terms: 9s + -4s = 5s
2 + 2s = 20 + 5s

Solving
2 + 2s = 20 + 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.
2 + 2s + -5s = 20 + 5s + -5s

Combine like terms: 2s + -5s = -3s
2 + -3s = 20 + 5s + -5s

Combine like terms: 5s + -5s = 0
2 + -3s = 20 + 0
2 + -3s = 20

Add '-2' to each side of the equation.
2 + -2 + -3s = 20 + -2

Combine like terms: 2 + -2 = 0
0 + -3s = 20 + -2
-3s = 20 + -2

Combine like terms: 20 + -2 = 18
-3s = 18

Divide each side by '-3'.
s = -6

Simplifying
s = -6

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