15=-4y-9

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Solution for 15=-4y-9 equation:


Simplifying
15 = -4y + -9

Reorder the terms:
15 = -9 + -4y

Solving
15 = -9 + -4y

Solving for variable 'y'.

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

Add '4y' to each side of the equation.
15 + 4y = -9 + -4y + 4y

Combine like terms: -4y + 4y = 0
15 + 4y = -9 + 0
15 + 4y = -9

Add '-15' to each side of the equation.
15 + -15 + 4y = -9 + -15

Combine like terms: 15 + -15 = 0
0 + 4y = -9 + -15
4y = -9 + -15

Combine like terms: -9 + -15 = -24
4y = -24

Divide each side by '4'.
y = -6

Simplifying
y = -6

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