-20=15-s

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Solution for -20=15-s equation:


Simplifying
-20 = 15 + -1s

Solving
-20 = 15 + -1s

Solving for variable 's'.

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

Add 's' to each side of the equation.
-20 + s = 15 + -1s + s

Combine like terms: -1s + s = 0
-20 + s = 15 + 0
-20 + s = 15

Add '20' to each side of the equation.
-20 + 20 + s = 15 + 20

Combine like terms: -20 + 20 = 0
0 + s = 15 + 20
s = 15 + 20

Combine like terms: 15 + 20 = 35
s = 35

Simplifying
s = 35

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