Question

(i) 5x - 4y+8 = 0
7x+6y-9=0​

Answer 1

Use quadratic equation method by finding out the roots ot the equation...

it's simple first degree equation... try first yourself... but if you can't don't worry...just ask me..

Answer 2

Answer:

5x - 4y+8........१ = 0 => 5x= 4y-8 => x=4y-8/5

7x+6y-9=0......२

put x=4y-8/5 in eq २

7x+6y-9=0 => 7(4y-8/5)+6y=9

28y-56/5 +6y =9

28y/5 -56/5 +6y = 9

28y/5+6y = 9 +56/5

28y+30y/5 = 45+56/5

58y/5 = 101/5

58y=101

y=101/58

put y in x=4y-8/5

x= 4×101/58 /5

x=404/58/5