SOLUTION: One number is 20 greater than another. If the lesser number is subtracted from three times the greater number, the difference is 84. Find the numbers.

Algebra ->  Inequalities -> SOLUTION: One number is 20 greater than another. If the lesser number is subtracted from three times the greater number, the difference is 84. Find the numbers.      Log On


   

Question 726132:
One number is 20 greater than another. If the lesser number is subtracted from three times the greater number, the difference is 84. Find the numbers.
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
X=Y+20
3X-Y=84
3(Y+20)-Y=84
3Y+60-Y=84
2Y=84-60
2Y=24
Y=24/2
Y=12 ANS.
X=12+20
X=32 ANS.
PROOF:
3*32-12=84
96-12=84
84=84