Question 722583
When 3 is multiplied by the sum of 7 and a number, the result is 48. 
Find the number.
:
Just write an equation for what it says:
3(n+7) = 48
divide both sides by 3
n + 7 = 16
Subtract 7 from both sides and you got it.
:
:
Check it in the original equation by replacing n with your solution