12(r-2)=(8r-6r)/4

Question

can you please help me step by step to work this out  

Answer 1

12(r-2)=(8r-6r)/4

expanding both sides we have:

12r - 24 = 2r/4

12r-24 = r/2

multiplying by 2 in both sides we obtain

24r - 48 = r

adding 48 at both sides and subtracting r at both sides also we get

24r - r =48

23r = 48

dividing both sides by 23 we have:

r=48/23 = 2.087