Asked by Tina

The difference of three times a number and 5 is 40. Find the number.
Answered by Ms. Sue
3x - 5 = 40
3x = 45
x = ??
Answered by Tina
is the answer 42...thank you Ms.Sue
Answered by Ms. Sue
No. How can three times 42 - 5 = 40?

3x - 5 = 40
Add 5 to both sides of the equation.

3x = 45
Divide both sides of the equation by 3.

x = ??
Answered by marisa
the answer would be 15 becuase when you divide 45 by 3 you would get 15