3(30-y)+2y=72

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Solution for 3(30-y)+2y=72 equation:


Simplifying
3(30 + -1y) + 2y = 72
(30 * 3 + -1y * 3) + 2y = 72
(90 + -3y) + 2y = 72

Combine like terms: -3y + 2y = -1y
90 + -1y = 72

Solving
90 + -1y = 72

Solving for variable 'y'.

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

Add '-90' to each side of the equation.
90 + -90 + -1y = 72 + -90

Combine like terms: 90 + -90 = 0
0 + -1y = 72 + -90
-1y = 72 + -90

Combine like terms: 72 + -90 = -18
-1y = -18

Divide each side by '-1'.
y = 18

Simplifying
y = 18

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