90s-120=60s

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Solution for 90s-120=60s equation:


Simplifying
90s + -120 = 60s

Reorder the terms:
-120 + 90s = 60s

Solving
-120 + 90s = 60s

Solving for variable 's'.

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

Add '-60s' to each side of the equation.
-120 + 90s + -60s = 60s + -60s

Combine like terms: 90s + -60s = 30s
-120 + 30s = 60s + -60s

Combine like terms: 60s + -60s = 0
-120 + 30s = 0

Add '120' to each side of the equation.
-120 + 120 + 30s = 0 + 120

Combine like terms: -120 + 120 = 0
0 + 30s = 0 + 120
30s = 0 + 120

Combine like terms: 0 + 120 = 120
30s = 120

Divide each side by '30'.
s = 4

Simplifying
s = 4

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