Question

A.9+(-6)
B.(-1)+(-7)​

Answer 1

Answer:

:

6

b

−

1

=

9

7

All we have to do is cross multiply

(6)(7) = 9(b - 1)

42 = 9b - 9

Change them side

9b - 9 = 42

9b = 42 + 9

9b = 51

Divide both sides by 9

9

b

9

=

51

9

b =

17

3

But if they want the answer in decimal, it is b =5.57

Answer 2

Answer:

(A) 9+(-6)

9-6

3

(B)(-1)+(-7)

-1-7

-8

Step-by-step explanation:

hope helps you!!