3+4x=51 Step 1: Subtract 3 from both side 3+4x-3=51-3 4x=48 Step 2: Divide both side by 4 4x/4=48/4 x=12. Check: Substitute x with 12 3+4x=51 3+4(12)=51 3+48=51 51=51. As a result, the best choice for Step 2 is “Divide both side by 4”. Hope it help!
You would need about 8 cups more. If you make 2 2/3 a improper fraction and then multiply it by three, you would get 24/3, which is eight in simplest form.