3(5y+7)=-9

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Solution for 3(5y+7)=-9 equation:


Simplifying
3(5y + 7) = -9

Reorder the terms:
3(7 + 5y) = -9
(7 * 3 + 5y * 3) = -9
(21 + 15y) = -9

Solving
21 + 15y = -9

Solving for variable 'y'.

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

Add '-21' to each side of the equation.
21 + -21 + 15y = -9 + -21

Combine like terms: 21 + -21 = 0
0 + 15y = -9 + -21
15y = -9 + -21

Combine like terms: -9 + -21 = -30
15y = -30

Divide each side by '15'.
y = -2

Simplifying
y = -2

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