Respuesta :

choixongdong
3x+4y = 15
4y = -3x + 15
 y = -3x/4 + 15/4
y = (15 -3x)/4

answer is the first one.
1. y = (15 -3x)/4
lauruh
subtract 3x from both sides to make it 4y=15-3x. Then isolate y by dividing both sides by 4 to make y= (15-3x)/4 so it would be #1