9y-8+4y=7y+15

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Solution for 9y-8+4y=7y+15 equation:


Simplifying
9y + -8 + 4y = 7y + 15

Reorder the terms:
-8 + 9y + 4y = 7y + 15

Combine like terms: 9y + 4y = 13y
-8 + 13y = 7y + 15

Reorder the terms:
-8 + 13y = 15 + 7y

Solving
-8 + 13y = 15 + 7y

Solving for variable 'y'.

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

Add '-7y' to each side of the equation.
-8 + 13y + -7y = 15 + 7y + -7y

Combine like terms: 13y + -7y = 6y
-8 + 6y = 15 + 7y + -7y

Combine like terms: 7y + -7y = 0
-8 + 6y = 15 + 0
-8 + 6y = 15

Add '8' to each side of the equation.
-8 + 8 + 6y = 15 + 8

Combine like terms: -8 + 8 = 0
0 + 6y = 15 + 8
6y = 15 + 8

Combine like terms: 15 + 8 = 23
6y = 23

Divide each side by '6'.
y = 3.833333333

Simplifying
y = 3.833333333

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