21y-3+24y+42=

Solution for 21y-3+24y+42= equation:

Simplifying
21y + -3 + 24y + 42 = 0

Reorder the terms:
-3 + 42 + 21y + 24y = 0

Combine like terms: -3 + 42 = 39
39 + 21y + 24y = 0

Combine like terms: 21y + 24y = 45y
39 + 45y = 0

Solving
39 + 45y = 0

Solving for variable 'y'.

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

Add '-39' to each side of the equation.
39 + -39 + 45y = 0 + -39

Combine like terms: 39 + -39 = 0
0 + 45y = 0 + -39
45y = 0 + -39

Combine like terms: 0 + -39 = -39
45y = -39

Divide each side by '45'.
y = -0.8666666667

Simplifying
y = -0.8666666667