5s+15(40+-.5s)=550

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Solution for 5s+15(40+-.5s)=550 equation:


Simplifying
5s + 15(40 + -0.5s) = 550
5s + (40 * 15 + -0.5s * 15) = 550
5s + (600 + -7.5s) = 550

Reorder the terms:
600 + 5s + -7.5s = 550

Combine like terms: 5s + -7.5s = -2.5s
600 + -2.5s = 550

Solving
600 + -2.5s = 550

Solving for variable 's'.

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

Add '-600' to each side of the equation.
600 + -600 + -2.5s = 550 + -600

Combine like terms: 600 + -600 = 0
0 + -2.5s = 550 + -600
-2.5s = 550 + -600

Combine like terms: 550 + -600 = -50
-2.5s = -50

Divide each side by '-2.5'.
s = 20

Simplifying
s = 20

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