(4s-10)+s+90=180

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Solution for (4s-10)+s+90=180 equation:


Simplifying
(4s + -10) + s + 90 = 180

Reorder the terms:
(-10 + 4s) + s + 90 = 180

Remove parenthesis around (-10 + 4s)
-10 + 4s + s + 90 = 180

Reorder the terms:
-10 + 90 + 4s + s = 180

Combine like terms: -10 + 90 = 80
80 + 4s + s = 180

Combine like terms: 4s + s = 5s
80 + 5s = 180

Solving
80 + 5s = 180

Solving for variable 's'.

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

Add '-80' to each side of the equation.
80 + -80 + 5s = 180 + -80

Combine like terms: 80 + -80 = 0
0 + 5s = 180 + -80
5s = 180 + -80

Combine like terms: 180 + -80 = 100
5s = 100

Divide each side by '5'.
s = 20

Simplifying
s = 20

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