4(y+2)=1.3+3(y+2.1)

Solution for 4(y+2)=1.3+3(y+2.1) equation:

Simplifying
4(y + 2) = 1.3 + 3(y + 2.1)

Reorder the terms:
4(2 + y) = 1.3 + 3(y + 2.1)
(2 * 4 + y * 4) = 1.3 + 3(y + 2.1)
(8 + 4y) = 1.3 + 3(y + 2.1)

Reorder the terms:
8 + 4y = 1.3 + 3(2.1 + y)
8 + 4y = 1.3 + (2.1 * 3 + y * 3)
8 + 4y = 1.3 + (6.3 + 3y)

Combine like terms: 1.3 + 6.3 = 7.6
8 + 4y = 7.6 + 3y

Solving
8 + 4y = 7.6 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
8 + 4y + -3y = 7.6 + 3y + -3y

Combine like terms: 4y + -3y = 1y
8 + 1y = 7.6 + 3y + -3y

Combine like terms: 3y + -3y = 0
8 + 1y = 7.6 + 0
8 + 1y = 7.6

Add '-8' to each side of the equation.
8 + -8 + 1y = 7.6 + -8

Combine like terms: 8 + -8 = 0
0 + 1y = 7.6 + -8
1y = 7.6 + -8

Combine like terms: 7.6 + -8 = -0.4
1y = -0.4

Divide each side by '1'.
y = -0.4

Simplifying
y = -0.4