3(5+-0.5y)+4y=30

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Solution for 3(5+-0.5y)+4y=30 equation: 


Simplifying
3(5 + -0.5y) + 4y = 30
(5 * 3 + -0.5y * 3) + 4y = 30
(15 + -1.5y) + 4y = 30

Combine like terms: -1.5y + 4y = 2.5y
15 + 2.5y = 30

Solving
15 + 2.5y = 30

Solving for variable 'y'.

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

Add '-15' to each side of the equation.
15 + -15 + 2.5y = 30 + -15

Combine like terms: 15 + -15 = 0
0 + 2.5y = 30 + -15
2.5y = 30 + -15

Combine like terms: 30 + -15 = 15
2.5y = 15

Divide each side by '2.5'.
y = 6

Simplifying
y = 6

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