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

Answer 1

3(4+n)=18+n
Hope this will help

Answer 2

n= 3

Explanation:

3 (4 + n) = n + 18

you take 3x4=12

then 3x3=9 then you add 12 and 9 which would be in the ( )

12+9 = 21

then if you replace n =3 on other side and add it to 18 answer is 21

therefore both sides would equal 21 so n=3

3(4+3)=3+18

21=21