SOLUTION: three is added to a number, and then the sum is multiplied by 4.The result is 16.What is the number.

Algebra ->  Equations -> SOLUTION: three is added to a number, and then the sum is multiplied by 4.The result is 16.What is the number.      Log On


   

Question 106930: three is added to a number, and then the sum is multiplied by 4.The result is 16.What is the number.
Found 2 solutions by an, Fombitz:
Answer by an(14) About Me  (Show Source):
You can put this solution on YOUR website!
this a an easy question try solving
3+?=4 x ?
3 + 1=4 x 4= 16
so 1 is the number

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let's call your number N.
Then
%283%2BN%29%2A4=16
To solve the problem, put the knowns on one side and unknown on the other.
%283%2BN%29%2A4=16
%283%2BN%29%2Across%284%29%2Fcross%284%29=16%2F4 Divide both sides by 4.
%283%2BN%29=4
cross%283%29-cross%283%29%2BN=4-3 Subtract 3 from boths sides.
highlight%28N=1%29
Check your answer.
%283%2BN%29%2A4=16
%283%2B1%29%2A4=16
4%2A4=16
16=16
Your answer led to a true statement.
It's a good solution.
Your number is 1.