-7+3=5s+21

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Solution for -7+3=5s+21 equation:


Simplifying
-7 + 3 = 5s + 21

Combine like terms: -7 + 3 = -4
-4 = 5s + 21

Reorder the terms:
-4 = 21 + 5s

Solving
-4 = 21 + 5s

Solving for variable 's'.

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

Add '-5s' to each side of the equation.
-4 + -5s = 21 + 5s + -5s

Combine like terms: 5s + -5s = 0
-4 + -5s = 21 + 0
-4 + -5s = 21

Add '4' to each side of the equation.
-4 + 4 + -5s = 21 + 4

Combine like terms: -4 + 4 = 0
0 + -5s = 21 + 4
-5s = 21 + 4

Combine like terms: 21 + 4 = 25
-5s = 25

Divide each side by '-5'.
s = -5

Simplifying
s = -5

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