6+8y=7y-9

Solution for 6+8y=7y-9 equation:

Simplifying
6 + 8y = 7y + -9

Reorder the terms:
6 + 8y = -9 + 7y

Solving
6 + 8y = -9 + 7y

Solving for variable 'y'.

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

Add '-7y' to each side of the equation.
6 + 8y + -7y = -9 + 7y + -7y

Combine like terms: 8y + -7y = 1y
6 + 1y = -9 + 7y + -7y

Combine like terms: 7y + -7y = 0
6 + 1y = -9 + 0
6 + 1y = -9

Add '-6' to each side of the equation.
6 + -6 + 1y = -9 + -6

Combine like terms: 6 + -6 = 0
0 + 1y = -9 + -6
1y = -9 + -6

Combine like terms: -9 + -6 = -15
1y = -15

Divide each side by '1'.
y = -15

Simplifying
y = -15