13s+21=16s-12

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Solution for 13s+21=16s-12 equation:


Simplifying
13s + 21 = 16s + -12

Reorder the terms:
21 + 13s = 16s + -12

Reorder the terms:
21 + 13s = -12 + 16s

Solving
21 + 13s = -12 + 16s

Solving for variable 's'.

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

Add '-16s' to each side of the equation.
21 + 13s + -16s = -12 + 16s + -16s

Combine like terms: 13s + -16s = -3s
21 + -3s = -12 + 16s + -16s

Combine like terms: 16s + -16s = 0
21 + -3s = -12 + 0
21 + -3s = -12

Add '-21' to each side of the equation.
21 + -21 + -3s = -12 + -21

Combine like terms: 21 + -21 = 0
0 + -3s = -12 + -21
-3s = -12 + -21

Combine like terms: -12 + -21 = -33
-3s = -33

Divide each side by '-3'.
s = 11

Simplifying
s = 11

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