1s+3=5s+21

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Solution for 1s+3=5s+21 equation:


Simplifying
1s + 3 = 5s + 21

Reorder the terms:
3 + 1s = 5s + 21

Reorder the terms:
3 + 1s = 21 + 5s

Solving
3 + 1s = 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.
3 + 1s + -5s = 21 + 5s + -5s

Combine like terms: 1s + -5s = -4s
3 + -4s = 21 + 5s + -5s

Combine like terms: 5s + -5s = 0
3 + -4s = 21 + 0
3 + -4s = 21

Add '-3' to each side of the equation.
3 + -3 + -4s = 21 + -3

Combine like terms: 3 + -3 = 0
0 + -4s = 21 + -3
-4s = 21 + -3

Combine like terms: 21 + -3 = 18
-4s = 18

Divide each side by '-4'.
s = -4.5

Simplifying
s = -4.5

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