Question

13x+2y=9
3y=7x
plz solve it by substitution
i want it urgently

Answer 1

Step-by-step explanation:

13x+2y-9=0

7x-3y-0=0

Answer 2

Answer:

x=27/53

y=63/53

Step-by-step explanation:

13x+2y=9. (1)

3y=7x (2)

From (2)

y=7x/3 (3)

Sub(3) in (1)

13x+2(7x/3)=9

13x+(14x/3)=9

Further solving by taking LCM and by bringing the denominator 3 to the right hand side,we get:

39x+14x=27

53x=27

X=27/53 (4)

Sub (4) in (2),

3y=7(27/53)

y=7*27/53*3

y=63/53