2=4(0)+y

Solution for 2=4(0)+y equation:

Simplifying
2 = 4(0) + y

Multiply 4 * 0
2 = 0 + y

Anything times zero is zero.
2 = 0 + y
Remove the zero:
2 = y

Solving
2 = 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.
2 + -1y = y + -1y

Combine like terms: y + -1y = 0
2 + -1y = 0

Add '-2' to each side of the equation.
2 + -2 + -1y = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -1y = 0 + -2
-1y = 0 + -2

Combine like terms: 0 + -2 = -2
-1y = -2

Divide each side by '-1'.
y = 2

Simplifying
y = 2