2(3+-1y)+14y=21

Solution for 2(3+-1y)+14y=21 equation:

Simplifying
2(3 + -1y) + 14y = 21
(3 * 2 + -1y * 2) + 14y = 21
(6 + -2y) + 14y = 21

Combine like terms: -2y + 14y = 12y
6 + 12y = 21

Solving
6 + 12y = 21

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 + 12y = 21 + -6

Combine like terms: 6 + -6 = 0
0 + 12y = 21 + -6
12y = 21 + -6

Combine like terms: 21 + -6 = 15
12y = 15

Divide each side by '12'.
y = 1.25

Simplifying
y = 1.25