SOLUTION: The sum of three times a number and 45 is 67

Algebra ->  Inverses -> SOLUTION: The sum of three times a number and 45 is 67      Log On


   



Question 763658: The sum of three times a number and 45 is 67
Answer by candicem(3) About Me  (Show Source):
You can put this solution on YOUR website!
Write out how the problem says it...
The sum meaning addition.
times = multiplication
number = x = unknown
is = equal sign (=)
the answer should equal 67
so it's 3x+45=67
In order to get x by itself
1.subtract 45 from both the problem and answer sides.
3x+45=67
-45 -45
3x = 22
2.divide both sides by 3 to get x by itself
3x/3 =22/3
x=7.33