84=4y-6+5y

Solution for 84=4y-6+5y equation:

Simplifying
84 = 4y + -6 + 5y

Reorder the terms:
84 = -6 + 4y + 5y

Combine like terms: 4y + 5y = 9y
84 = -6 + 9y

Solving
84 = -6 + 9y

Solving for variable 'y'.

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

Add '-9y' to each side of the equation.
84 + -9y = -6 + 9y + -9y

Combine like terms: 9y + -9y = 0
84 + -9y = -6 + 0
84 + -9y = -6

Add '-84' to each side of the equation.
84 + -84 + -9y = -6 + -84

Combine like terms: 84 + -84 = 0
0 + -9y = -6 + -84
-9y = -6 + -84

Combine like terms: -6 + -84 = -90
-9y = -90

Divide each side by '-9'.
y = 10

Simplifying
y = 10