y-42=8y

Solution for y-42=8y equation:

Simplifying
y + -42 = 8y

Reorder the terms:
-42 + y = 8y

Solving
-42 + y = 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
-42 + y + -8y = 8y + -8y

Combine like terms: y + -8y = -7y
-42 + -7y = 8y + -8y

Combine like terms: 8y + -8y = 0
-42 + -7y = 0

Add '42' to each side of the equation.
-42 + 42 + -7y = 0 + 42

Combine like terms: -42 + 42 = 0
0 + -7y = 0 + 42
-7y = 0 + 42

Combine like terms: 0 + 42 = 42
-7y = 42

Divide each side by '-7'.
y = -6

Simplifying
y = -6