-3y+15-y=3a

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


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

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

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

Solving
15 + -4y = 3a

Solving for variable 'y'.

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

Add '-15' to each side of the equation.
15 + -15 + -4y = -15 + 3a

Combine like terms: 15 + -15 = 0
0 + -4y = -15 + 3a
-4y = -15 + 3a

Divide each side by '-4'.
y = 3.75 + -0.75a

Simplifying
y = 3.75 + -0.75a

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