Three multiplied by the sum of 4 and a number is the same as 18 more than the number. Find the number.
If n is "the number," which equation could be used to solve for the number?

3n+ 4 =n+ 18
4(3 +n) =n+ 18
3(4 +n) =n+ 18

Question

Three multiplied by the sum of 4 and a number is the same as 18 more than the number. Find the number.
If n is "the number," which equation could be used to solve for the number?

3n+ 4 =n+ 18
4(3 +n) =n+ 18
3(4 +n) =n+ 18

radar · Answer

3(4+n)=n+18 do you see why?

anonymous · Answer

Because you multiply the 3 and 4 then subtract to get just n?

phi · Answer

Three multiplied by the sum of 4 and a number
  3           *                            (   4 + n)

radar · Answer

That sounds like the way to solve for n.
12 +3n = n +18
3n -n = 18-12
2n = 6 
n =3    3 would be the number, but do you understand how to translate the given written form to get 3(4+n) = n + 18