15y+y=-21-3y

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Solution for 15y+y=-21-3y equation:


Simplifying
15y + y = -21 + -3y

Combine like terms: 15y + y = 16y
16y = -21 + -3y

Solving
16y = -21 + -3y

Solving for variable 'y'.

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

Add '3y' to each side of the equation.
16y + 3y = -21 + -3y + 3y

Combine like terms: 16y + 3y = 19y
19y = -21 + -3y + 3y

Combine like terms: -3y + 3y = 0
19y = -21 + 0
19y = -21

Divide each side by '19'.
y = -1.105263158

Simplifying
y = -1.105263158

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