Question

find the value of X in equation 3x + 5y = 4, 9x - 2y = 7​

Answer 1

Answer:

here,

3x+5y=4 eq(1)

9x-2y=7. eq(2)

then,

multiplying eq(1)by2

and multiplying eq (2)by5

so,.

6x+10y=8. eq(3)

45x-10y=35 eq(4)

subtract eq(3) by eq4

6x+10y-45x-10y=8-35

39x=27

x. =27/39

x=9/13