s-4=21

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Solution for s-4=21 equation:


Simplifying
s + -4 = 21

Reorder the terms:
-4 + s = 21

Solving
-4 + s = 21

Solving for variable 's'.

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

Add '4' to each side of the equation.
-4 + 4 + s = 21 + 4

Combine like terms: -4 + 4 = 0
0 + s = 21 + 4
s = 21 + 4

Combine like terms: 21 + 4 = 25
s = 25

Simplifying
s = 25

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