s+100=21s-100

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Solution for s+100=21s-100 equation:


Simplifying
s + 100 = 21s + -100

Reorder the terms:
100 + s = 21s + -100

Reorder the terms:
100 + s = -100 + 21s

Solving
100 + s = -100 + 21s

Solving for variable 's'.

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

Add '-21s' to each side of the equation.
100 + s + -21s = -100 + 21s + -21s

Combine like terms: s + -21s = -20s
100 + -20s = -100 + 21s + -21s

Combine like terms: 21s + -21s = 0
100 + -20s = -100 + 0
100 + -20s = -100

Add '-100' to each side of the equation.
100 + -100 + -20s = -100 + -100

Combine like terms: 100 + -100 = 0
0 + -20s = -100 + -100
-20s = -100 + -100

Combine like terms: -100 + -100 = -200
-20s = -200

Divide each side by '-20'.
s = 10

Simplifying
s = 10

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