2s-20=-21+3s

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Solution for 2s-20=-21+3s equation:


Simplifying
2s + -20 = -21 + 3s

Reorder the terms:
-20 + 2s = -21 + 3s

Solving
-20 + 2s = -21 + 3s

Solving for variable 's'.

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

Add '-3s' to each side of the equation.
-20 + 2s + -3s = -21 + 3s + -3s

Combine like terms: 2s + -3s = -1s
-20 + -1s = -21 + 3s + -3s

Combine like terms: 3s + -3s = 0
-20 + -1s = -21 + 0
-20 + -1s = -21

Add '20' to each side of the equation.
-20 + 20 + -1s = -21 + 20

Combine like terms: -20 + 20 = 0
0 + -1s = -21 + 20
-1s = -21 + 20

Combine like terms: -21 + 20 = -1
-1s = -1

Divide each side by '-1'.
s = 1

Simplifying
s = 1

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