3s+5s-4=20

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Solution for 3s+5s-4=20 equation: 


Simplifying
3s + 5s + -4 = 20

Reorder the terms:
-4 + 3s + 5s = 20

Combine like terms: 3s + 5s = 8s
-4 + 8s = 20

Solving
-4 + 8s = 20

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 + 8s = 20 + 4

Combine like terms: -4 + 4 = 0
0 + 8s = 20 + 4
8s = 20 + 4

Combine like terms: 20 + 4 = 24
8s = 24

Divide each side by '8'.
s = 3

Simplifying
s = 3

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