6=y-20

Solution for 6=y-20 equation:

Simplifying
6 = y + -20

Reorder the terms:
6 = -20 + y

Solving
6 = -20 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
6 + -1y = -20 + y + -1y

Combine like terms: y + -1y = 0
6 + -1y = -20 + 0
6 + -1y = -20

Add '-6' to each side of the equation.
6 + -6 + -1y = -20 + -6

Combine like terms: 6 + -6 = 0
0 + -1y = -20 + -6
-1y = -20 + -6

Combine like terms: -20 + -6 = -26
-1y = -26

Divide each side by '-1'.
y = 26

Simplifying
y = 26