y+3(2+4y)=64

Solution for y+3(2+4y)=64 equation:

Simplifying
y + 3(2 + 4y) = 64
y + (2 * 3 + 4y * 3) = 64
y + (6 + 12y) = 64

Reorder the terms:
6 + y + 12y = 64

Combine like terms: y + 12y = 13y
6 + 13y = 64

Solving
6 + 13y = 64

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 + 13y = 64 + -6

Combine like terms: 6 + -6 = 0
0 + 13y = 64 + -6
13y = 64 + -6

Combine like terms: 64 + -6 = 58
13y = 58

Divide each side by '13'.
y = 4.461538462

Simplifying
y = 4.461538462