7s+20=9s

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Solution for 7s+20=9s equation:


Simplifying
7s + 20 = 9s

Reorder the terms:
20 + 7s = 9s

Solving
20 + 7s = 9s

Solving for variable 's'.

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

Add '-9s' to each side of the equation.
20 + 7s + -9s = 9s + -9s

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

Combine like terms: 9s + -9s = 0
20 + -2s = 0

Add '-20' to each side of the equation.
20 + -20 + -2s = 0 + -20

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

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

Divide each side by '-2'.
s = 10

Simplifying
s = 10

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