y+-42=7y

Solution for y+-42=7y equation:

Simplifying
y + -42 = 7y

Reorder the terms:
-42 + y = 7y

Solving
-42 + y = 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.
-42 + y + -7y = 7y + -7y

Combine like terms: y + -7y = -6y
-42 + -6y = 7y + -7y

Combine like terms: 7y + -7y = 0
-42 + -6y = 0

Add '42' to each side of the equation.
-42 + 42 + -6y = 0 + 42

Combine like terms: -42 + 42 = 0
0 + -6y = 0 + 42
-6y = 0 + 42

Combine like terms: 0 + 42 = 42
-6y = 42

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

Simplifying
y = -7