3y+9=y-5

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Solution for 3y+9=y-5 equation:


Simplifying
3y + 9 = y + -5

Reorder the terms:
9 + 3y = y + -5

Reorder the terms:
9 + 3y = -5 + y

Solving
9 + 3y = -5 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
9 + 3y + -1y = -5 + y + -1y

Combine like terms: 3y + -1y = 2y
9 + 2y = -5 + y + -1y

Combine like terms: y + -1y = 0
9 + 2y = -5 + 0
9 + 2y = -5

Add '-9' to each side of the equation.
9 + -9 + 2y = -5 + -9

Combine like terms: 9 + -9 = 0
0 + 2y = -5 + -9
2y = -5 + -9

Combine like terms: -5 + -9 = -14
2y = -14

Divide each side by '2'.
y = -7

Simplifying
y = -7

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