
Need help Confused
I have been trying to do this problem and I do not know where to start.
What is throwing me off is y/4. I have looked in my textbook and I can not find any example of this problem. I hope someone can help me.
Use elimination to solve: 6x  y/4 = 9 and 3x + 2y = 30
Thank you for the help in advance.

" Use elimination to solve: 6x  y/4 = 9 and 3x + 2y = 30 "
Elimination here means eliminating/removing one of the variables. So if your problem is the y/4, then eliminate the y's. The other yterm is 2y, so you either
>>>make this 2y into y/4 by dividing 2y by 8, or,
>>>make the y/4 into 2y by multiplying the y/4 by 8. It is better this way so that you can avoid too many fractions.
6x y/4 = 9
Multiply both sides by 8,
48x 2y = 72 (i),
Add that to the other equation, to eliminate the y's,
3x +2y = 30

51x +0 = 102
x = 102 / 51
x = 2 ***
Substitute that into the other equation,
3(2) +2y = 30
6 +2y = 30
2y = 30 +6
2y = 24
y = 24/2
y = 12 ***
Check those in the 1st equation,
6x y/4 = 9
6(2) (12)/4 =? 9
12 +3 =? 9
9 =? 9
Yes, so, Ok.
