3(4.2+0.6y)+2y=5

Solution for 3(4.2+0.6y)+2y=5 equation:

Simplifying
3(4.2 + 0.6y) + 2y = 5
(4.2 * 3 + 0.6y * 3) + 2y = 5
(12.6 + 1.8y) + 2y = 5

Combine like terms: 1.8y + 2y = 3.8y
12.6 + 3.8y = 5

Solving
12.6 + 3.8y = 5

Solving for variable 'y'.

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

Add '-12.6' to each side of the equation.
12.6 + -12.6 + 3.8y = 5 + -12.6

Combine like terms: 12.6 + -12.6 = 0.0
0.0 + 3.8y = 5 + -12.6
3.8y = 5 + -12.6

Combine like terms: 5 + -12.6 = -7.6
3.8y = -7.6

Divide each side by '3.8'.
y = -2

Simplifying
y = -2