20=y(10)

Solution for 20=y(10) equation:

Simplifying
20 = y(10)

Reorder the terms for easier multiplication:
20 = 10y

Solving
20 = 10y

Solving for variable 'y'.

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

Add '-10y' to each side of the equation.
20 + -10y = 10y + -10y

Combine like terms: 10y + -10y = 0
20 + -10y = 0

Add '-20' to each side of the equation.
20 + -20 + -10y = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -10y = 0 + -20
-10y = 0 + -20

Combine like terms: 0 + -20 = -20
-10y = -20

Divide each side by '-10'.
y = 2

Simplifying
y = 2