please explain and solve for a in 3a + 12= 6a-24
3a + 12 = 6a - 2412 + 24 = 6a - 3a3a = 36a = 36/3a = 12
3a+12= 6a-24 -12= -123a = 6a-36-6a = -6a-36-3a = -6a-36 then divide by both side by -3 a = 12Ans: a=12