2(50-y)+1.5y=90

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Solution for 2(50-y)+1.5y=90 equation: 


Simplifying
2(50 + -1y) + 1.5y = 90
(50 * 2 + -1y * 2) + 1.5y = 90
(100 + -2y) + 1.5y = 90

Combine like terms: -2y + 1.5y = -0.5y
100 + -0.5y = 90

Solving
100 + -0.5y = 90

Solving for variable 'y'.

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

Add '-100' to each side of the equation.
100 + -100 + -0.5y = 90 + -100

Combine like terms: 100 + -100 = 0
0 + -0.5y = 90 + -100
-0.5y = 90 + -100

Combine like terms: 90 + -100 = -10
-0.5y = -10

Divide each side by '-0.5'.
y = 20

Simplifying
y = 20

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