2(y+3)+2y=42

Solution for 2(y+3)+2y=42 equation:

Simplifying
2(y + 3) + 2y = 42

Reorder the terms:
2(3 + y) + 2y = 42
(3 * 2 + y * 2) + 2y = 42
(6 + 2y) + 2y = 42

Combine like terms: 2y + 2y = 4y
6 + 4y = 42

Solving
6 + 4y = 42

Solving for variable 'y'.

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

Add '-6' to each side of the equation.
6 + -6 + 4y = 42 + -6

Combine like terms: 6 + -6 = 0
0 + 4y = 42 + -6
4y = 42 + -6

Combine like terms: 42 + -6 = 36
4y = 36

Divide each side by '4'.
y = 9

Simplifying
y = 9