Question

Find two pairs of solutions of the eq. x-7= 2y​

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Answer 1

Answer:

Number of ordered pairs ought to be 2 as y=(2x−3)(x+9) is a quadratic equation. As discriminant is Δ=b2−4ac=692−4×8×98=1625>0 , we have two ordered pairs and using quadratic.

hope it helps you

Answer 2

Answer:

x-7=2y

Now,

(solution 1 :- ).

put the value of x=2 , then we get

2y= x-7

2y=2-7

2y= -5

y= -5/2

(solution 2:-).

put the value of x=9 , then we get

2y=x-7

2y=9-7

2y=2

y=2/2

y=1