3y+15=9y-13

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Solution for 3y+15=9y-13 equation:


Simplifying
3y + 15 = 9y + -13

Reorder the terms:
15 + 3y = 9y + -13

Reorder the terms:
15 + 3y = -13 + 9y

Solving
15 + 3y = -13 + 9y

Solving for variable 'y'.

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

Add '-9y' to each side of the equation.
15 + 3y + -9y = -13 + 9y + -9y

Combine like terms: 3y + -9y = -6y
15 + -6y = -13 + 9y + -9y

Combine like terms: 9y + -9y = 0
15 + -6y = -13 + 0
15 + -6y = -13

Add '-15' to each side of the equation.
15 + -15 + -6y = -13 + -15

Combine like terms: 15 + -15 = 0
0 + -6y = -13 + -15
-6y = -13 + -15

Combine like terms: -13 + -15 = -28
-6y = -28

Divide each side by '-6'.
y = 4.666666667

Simplifying
y = 4.666666667

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