4s-9=7+8s

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Solution for 4s-9=7+8s equation:


Simplifying
4s + -9 = 7 + 8s

Reorder the terms:
-9 + 4s = 7 + 8s

Solving
-9 + 4s = 7 + 8s

Solving for variable 's'.

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

Add '-8s' to each side of the equation.
-9 + 4s + -8s = 7 + 8s + -8s

Combine like terms: 4s + -8s = -4s
-9 + -4s = 7 + 8s + -8s

Combine like terms: 8s + -8s = 0
-9 + -4s = 7 + 0
-9 + -4s = 7

Add '9' to each side of the equation.
-9 + 9 + -4s = 7 + 9

Combine like terms: -9 + 9 = 0
0 + -4s = 7 + 9
-4s = 7 + 9

Combine like terms: 7 + 9 = 16
-4s = 16

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

Simplifying
s = -4

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