Distribute 0.6 throughout the set of parenthesis
0.6 x Y = 0.6y
0.6 x 3 = 1.8
Now the equation looks like this:
0.6y + 1.8 = 4.8
Perform the opposite operation on the left side of the equation by subtracting 1.8 on both sides of the equation
0.6y = 3
Perform the opposite operation on both sides of the equation by dividing by 0.6
y=5