Question

solve by elimination method 2(3x-y)=5xy ; 2(x+4y)=5xy​

Answer 1

Answer:

2(3x-y) =6x-2y=5xy eq1 , 2(x+4y) =2x+8y=5xy eq2

multipying equation 1 and 2 by xy

xy. 6x-xy.2y =5xy.xy=6y-2x=5, eq 3

Step-by-step explanation:

xy. 2x+xy.8y=5xy.xy=2y+8x=5 eq 4

multiplying eq 3 by 4

24y-8x=29 eq 5

adding equation 4 and 5

2y+8x=5

24y-8x=5

26y=10

y=10/26 = 1/2.6

sustituting y=1/2.6in eq 4

x= ? find out x value