Question

If x + 9 = – 6, then the value of x is ---_______
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Answer 1

x+y = -9, or

x = -9-y …(1)

xy = 6 …(2)

y(-9-y)=6

y^2+9y+6=0

y1 = [-9+(81–24)^0.5]/2

= [-9+57^0.5]/2

= [-9+7.549834435]/2

= -1.450165565/2

= - 0.725082782 and x1 = 6/( - 0.725082782) = -8.274917218

y2 = [-9-(81–24)^0.5]/2

= [-9-57^0.5]/2

= [-9-7.549834435]/2

= -16,549834435/2

= - 8.274917218 and x2 = 6/( - 8.274917218) = -0.725082782

If x = -0.725082782 then y = - 8.274917218 or if x = - 8.274917218 , then x = -0.725082782. Answer

Answer 2

Answer:

-15

Step-by-step explanation:

-15+9=-6

HOPE IT HELP YOU