8s-9=7s

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Solution for 8s-9=7s equation:


Simplifying
8s + -9 = 7s

Reorder the terms:
-9 + 8s = 7s

Solving
-9 + 8s = 7s

Solving for variable 's'.

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

Add '-7s' to each side of the equation.
-9 + 8s + -7s = 7s + -7s

Combine like terms: 8s + -7s = 1s
-9 + 1s = 7s + -7s

Combine like terms: 7s + -7s = 0
-9 + 1s = 0

Add '9' to each side of the equation.
-9 + 9 + 1s = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 1s = 0 + 9
1s = 0 + 9

Combine like terms: 0 + 9 = 9
1s = 9

Divide each side by '1'.
s = 9

Simplifying
s = 9

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