7y-9+2(4y+5)=-3(y+5)

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Solution for 7y-9+2(4y+5)=-3(y+5) equation:


Simplifying
7y + -9 + 2(4y + 5) = -3(y + 5)

Reorder the terms:
7y + -9 + 2(5 + 4y) = -3(y + 5)
7y + -9 + (5 * 2 + 4y * 2) = -3(y + 5)
7y + -9 + (10 + 8y) = -3(y + 5)

Reorder the terms:
-9 + 10 + 7y + 8y = -3(y + 5)

Combine like terms: -9 + 10 = 1
1 + 7y + 8y = -3(y + 5)

Combine like terms: 7y + 8y = 15y
1 + 15y = -3(y + 5)

Reorder the terms:
1 + 15y = -3(5 + y)
1 + 15y = (5 * -3 + y * -3)
1 + 15y = (-15 + -3y)

Solving
1 + 15y = -15 + -3y

Solving for variable 'y'.

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

Add '3y' to each side of the equation.
1 + 15y + 3y = -15 + -3y + 3y

Combine like terms: 15y + 3y = 18y
1 + 18y = -15 + -3y + 3y

Combine like terms: -3y + 3y = 0
1 + 18y = -15 + 0
1 + 18y = -15

Add '-1' to each side of the equation.
1 + -1 + 18y = -15 + -1

Combine like terms: 1 + -1 = 0
0 + 18y = -15 + -1
18y = -15 + -1

Combine like terms: -15 + -1 = -16
18y = -16

Divide each side by '18'.
y = -0.8888888889

Simplifying
y = -0.8888888889

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