3y+15=-y-13

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


Simplifying
3y + 15 = -1y + -13

Reorder the terms:
15 + 3y = -1y + -13

Reorder the terms:
15 + 3y = -13 + -1y

Solving
15 + 3y = -13 + -1y

Solving for variable 'y'.

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

Add 'y' to each side of the equation.
15 + 3y + y = -13 + -1y + y

Combine like terms: 3y + y = 4y
15 + 4y = -13 + -1y + y

Combine like terms: -1y + y = 0
15 + 4y = -13 + 0
15 + 4y = -13

Add '-15' to each side of the equation.
15 + -15 + 4y = -13 + -15

Combine like terms: 15 + -15 = 0
0 + 4y = -13 + -15
4y = -13 + -15

Combine like terms: -13 + -15 = -28
4y = -28

Divide each side by '4'.
y = -7

Simplifying
y = -7

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