-3y-9=7y-5+8y+4

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Solution for -3y-9=7y-5+8y+4 equation:


Simplifying
-3y + -9 = 7y + -5 + 8y + 4

Reorder the terms:
-9 + -3y = 7y + -5 + 8y + 4

Reorder the terms:
-9 + -3y = -5 + 4 + 7y + 8y

Combine like terms: -5 + 4 = -1
-9 + -3y = -1 + 7y + 8y

Combine like terms: 7y + 8y = 15y
-9 + -3y = -1 + 15y

Solving
-9 + -3y = -1 + 15y

Solving for variable 'y'.

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

Add '-15y' to each side of the equation.
-9 + -3y + -15y = -1 + 15y + -15y

Combine like terms: -3y + -15y = -18y
-9 + -18y = -1 + 15y + -15y

Combine like terms: 15y + -15y = 0
-9 + -18y = -1 + 0
-9 + -18y = -1

Add '9' to each side of the equation.
-9 + 9 + -18y = -1 + 9

Combine like terms: -9 + 9 = 0
0 + -18y = -1 + 9
-18y = -1 + 9

Combine like terms: -1 + 9 = 8
-18y = 8

Divide each side by '-18'.
y = -0.4444444444

Simplifying
y = -0.4444444444

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