Question

2x-y=6,3x+y=9.Solve it by evaluating proportional value of the variables.

Answer 1

2x-y=6...........eq#1
3x+y=9...........eq#2
take eq#1
y=2x-6......eq#3
put eq #3 into eq 2
3x +2x-6=9
5x =9+6
5x =15
x=15\5
x=3
now put the value of x into EQ#3
y=2(3)-6
y=6-6
y=0
So, th solution set is { ( 3, 0 ) }

Answer 2

ur's is correct & it is solved by using substitution method ,but i need it by using elimination method......