3s-75=s+15

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Solution for 3s-75=s+15 equation:


Simplifying
3s + -75 = s + 15

Reorder the terms:
-75 + 3s = s + 15

Reorder the terms:
-75 + 3s = 15 + s

Solving
-75 + 3s = 15 + s

Solving for variable 's'.

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

Add '-1s' to each side of the equation.
-75 + 3s + -1s = 15 + s + -1s

Combine like terms: 3s + -1s = 2s
-75 + 2s = 15 + s + -1s

Combine like terms: s + -1s = 0
-75 + 2s = 15 + 0
-75 + 2s = 15

Add '75' to each side of the equation.
-75 + 75 + 2s = 15 + 75

Combine like terms: -75 + 75 = 0
0 + 2s = 15 + 75
2s = 15 + 75

Combine like terms: 15 + 75 = 90
2s = 90

Divide each side by '2'.
s = 45

Simplifying
s = 45

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