Question

9.What must be subtracted from -7 to obtain -15?
(a) 8
(b) 8
(c) -22
10. (?) + (-18) = -6
(c) 3
(a) -108
(b) 108
11. (-37)*(-7)+(-37) (-3) = ?
(c) 148
(a) 370
(b) -370
12. (-25) 8+(-25) x 2 = ?
Ac) - 250
(a) 250
(b) 150
13. (-9) -(-6) = ?
(c) 3
(a) -15
(b) -3
14. How much less than -2 is -8?
(c) 10
(b) 6
(d) -150
(d) 15
(d) -10
(a) 6
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Answer 1

Step-by-step explanation:

9. Let the no. be x

-7-x=-15

- x=-15+7

-x = -8

x = 8 Ans

10. X+(-18) =-6

X-18=-6

x =-6+18

X = 12 Ans

12.(-25) 8+(-25) x2

- 200+ (-25)x2

- 200-25x2

- 200-50

-250 Ans

13.(-9)-(-6) =?

-9+6

-3 Ans

14.x-(-2) =-8

x+2=-8

x =-8-2

x = -10 Ans