75=7s-5s+15

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Solution for 75=7s-5s+15 equation:


Simplifying
75 = 7s + -5s + 15

Reorder the terms:
75 = 15 + 7s + -5s

Combine like terms: 7s + -5s = 2s
75 = 15 + 2s

Solving
75 = 15 + 2s

Solving for variable 's'.

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

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

Combine like terms: 2s + -2s = 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 = -60
-2s = -60

Divide each side by '-2'.
s = 30

Simplifying
s = 30

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