3x+4y=8 for y
To get y alone first subtract 3x from both sides of the equation so it will be:
4y= -3x+8
Then you need to separate the 4 from y so y stands alone. Divide 4 from both sides to get:
y= -3/4x+2
4y= -3x+8
Then you need to separate the 4 from y so y stands alone. Divide 4 from both sides to get:
y= -3/4x+2