2y+42=4y

Solution for 2y+42=4y equation:

Simplifying
2y + 42 = 4y

Reorder the terms:
42 + 2y = 4y

Solving
42 + 2y = 4y

Solving for variable 'y'.

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

Add '-4y' to each side of the equation.
42 + 2y + -4y = 4y + -4y

Combine like terms: 2y + -4y = -2y
42 + -2y = 4y + -4y

Combine like terms: 4y + -4y = 0
42 + -2y = 0

Add '-42' to each side of the equation.
42 + -42 + -2y = 0 + -42

Combine like terms: 42 + -42 = 0
0 + -2y = 0 + -42
-2y = 0 + -42

Combine like terms: 0 + -42 = -42
-2y = -42

Divide each side by '-2'.
y = 21

Simplifying
y = 21