2(y+7.8)=y+2.3

Solution for 2(y+7.8)=y+2.3 equation:

Simplifying
2(y + 7.8) = y + 2.3

Reorder the terms:
2(7.8 + y) = y + 2.3
(7.8 * 2 + y * 2) = y + 2.3
(15.6 + 2y) = y + 2.3

Reorder the terms:
15.6 + 2y = 2.3 + y

Solving
15.6 + 2y = 2.3 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
15.6 + 2y + -1y = 2.3 + y + -1y

Combine like terms: 2y + -1y = 1y
15.6 + 1y = 2.3 + y + -1y

Combine like terms: y + -1y = 0
15.6 + 1y = 2.3 + 0
15.6 + 1y = 2.3

Add '-15.6' to each side of the equation.
15.6 + -15.6 + 1y = 2.3 + -15.6

Combine like terms: 15.6 + -15.6 = 0.0
0.0 + 1y = 2.3 + -15.6
1y = 2.3 + -15.6

Combine like terms: 2.3 + -15.6 = -13.3
1y = -13.3

Divide each side by '1'.
y = -13.3

Simplifying
y = -13.3