21+3s=10s

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Solution for 21+3s=10s equation:


Simplifying
21 + 3s = 10s

Solving
21 + 3s = 10s

Solving for variable 's'.

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

Add '-10s' to each side of the equation.
21 + 3s + -10s = 10s + -10s

Combine like terms: 3s + -10s = -7s
21 + -7s = 10s + -10s

Combine like terms: 10s + -10s = 0
21 + -7s = 0

Add '-21' to each side of the equation.
21 + -21 + -7s = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -7s = 0 + -21
-7s = 0 + -21

Combine like terms: 0 + -21 = -21
-7s = -21

Divide each side by '-7'.
s = 3

Simplifying
s = 3

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