-3y+15=-42

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Solution for -3y+15=-42 equation: 


Simplifying
-3y + 15 = -42

Reorder the terms:
15 + -3y = -42

Solving
15 + -3y = -42

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 + -3y = -42 + -15

Combine like terms: 15 + -15 = 0
0 + -3y = -42 + -15
-3y = -42 + -15

Combine like terms: -42 + -15 = -57
-3y = -57

Divide each side by '-3'.
y = 19

Simplifying
y = 19

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