9-3y=4y+15

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Solution for 9-3y=4y+15 equation:


Simplifying
9 + -3y = 4y + 15

Reorder the terms:
9 + -3y = 15 + 4y

Solving
9 + -3y = 15 + 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.
9 + -3y + -4y = 15 + 4y + -4y

Combine like terms: -3y + -4y = -7y
9 + -7y = 15 + 4y + -4y

Combine like terms: 4y + -4y = 0
9 + -7y = 15 + 0
9 + -7y = 15

Add '-9' to each side of the equation.
9 + -9 + -7y = 15 + -9

Combine like terms: 9 + -9 = 0
0 + -7y = 15 + -9
-7y = 15 + -9

Combine like terms: 15 + -9 = 6
-7y = 6

Divide each side by '-7'.
y = -0.8571428571

Simplifying
y = -0.8571428571

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