Question

if x=-7, y=3 find x+y ,xy,x

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Answer 1

Answer:

$1) \: x + y = ( - 7) + 3 = - 4 \\ 2) \: xy = - 7 \times 3 = - 21 \\3) \: x = 3$

Hope it helps you

Answer 2

SOLUTION :

x = -7

y = 3

Now,

• x+y = -7 +3 = -4

• xy = -7*3= -21

• x = -7

HENCE , x+y = -4 , xy = -21 and x = -7