Question

Given equations A and B as 2/3x + 3/5y = 12 and 5/2y - 3x = 6 , respectively, which expression will eliminate the variable y?

A. 5/3A + 2/5B
B. 5/3A - B
C. A - 2/5B
D. 5/3A - 2/5B
E. 25/15A + 6/15B

Answer 1

whats the y coeffecient in each equation A and B ?

Answer 2

Not sure

Answer 3

y coeffiecient, is the number that attaches to y

Answer 4

equation A :

2/3x + 3/5y = 12
^

Answer 5

3/5 is the y coeffient

Answer 6

similarly, can u tell whats the y coeffecient in equation B ?

Answer 7

Isn't it the same?

Answer 8

look again at equation B, whats the number attached to y ?
5/2y - 3x = 6

Answer 9

5/2

Answer 10

Yes !

Answer 11

equation A : 3/5
equation B : 5/2

to make the y-coefficient 1, you can multiply equations with their resiprocals : 5/3, and 2/5

so the answer wud be :-
5/3A - 2/5B

Answer 12

Thanks!

Answer 13

yw !