3) y= 5x-6 Add 6 to both sides so it's gonna be= 6y = 5x Then divde by 5 in both sides so it's gonna be: 6y/5 = x
4) (x+y)/3 = 5 Multiply by 3 in both sides so it's gonna be: x+y = 15 Then subtract by y to move it to the other side so it's gonna be: x = 15-y Hope this helps
3.) 5x-6=0, Add 6 to either side -> 5x=6, divide each side by 5 -> x=6/5 ---- 4.) x+y/3=5, multiple each side by 3 -> x+y=15, move y to the other side -> x=-y+15
