3s-9=4+7s-1

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Solution for 3s-9=4+7s-1 equation:


Simplifying
3s + -9 = 4 + 7s + -1

Reorder the terms:
-9 + 3s = 4 + 7s + -1

Reorder the terms:
-9 + 3s = 4 + -1 + 7s

Combine like terms: 4 + -1 = 3
-9 + 3s = 3 + 7s

Solving
-9 + 3s = 3 + 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 + 3s + -7s = 3 + 7s + -7s

Combine like terms: 3s + -7s = -4s
-9 + -4s = 3 + 7s + -7s

Combine like terms: 7s + -7s = 0
-9 + -4s = 3 + 0
-9 + -4s = 3

Add '9' to each side of the equation.
-9 + 9 + -4s = 3 + 9

Combine like terms: -9 + 9 = 0
0 + -4s = 3 + 9
-4s = 3 + 9

Combine like terms: 3 + 9 = 12
-4s = 12

Divide each side by '-4'.
s = -3

Simplifying
s = -3

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