Question

6. Ifg=-7, find the value of
8 gº+9g​

Answer 1

Question:(The solution there is wrong)

7. If x2 - xy + y = 15, and x = 2, find the value of y.

Step-by-step explanation:

Here,

x2-xy+y=15

or, (2)2-(2)y+y=15

or, 4-2y+y=15

or, -y=15-4

or, -y=11

.°. y =-11

Verification:

LHS:

x2-xy+y

(2)2-(2)(-11)+(-11)

4+22-11

26-11

15

RHS:

15.

Where,LHS=RHS.

Answer:

Value of y is -11.