Question

1) 7×(*)=-21; 9) -15×(*) = 603) -5×(*) = -30;4) (*)×(-4) = 36:5) (*)×(-9) = -63;6) (-25)×(*) = -100.​

Answer 1

Ответ:

1) 48

2) 3

3/83

4)2

5)8

6)32

Answer 2

To solve these equations for the missing variable represented by (*), you can follow these steps:

1. 7×() = -21 Divide both sides by 7 to isolate (): () = -21 / 7 () = -3

2. -15×() = 60 Divide both sides by -15 to isolate (): () = 60 / -15 () = -4

3. -5×() = -30 Divide both sides by -5 to isolate (): () = -30 / -5 () = 6

4. ()×(-4) = 36 Divide both sides by -4 to isolate (): () = 36 / -4 () = -9

5. ()×(-9) = -63 Divide both sides by -9 to isolate (): () = -63 / -9 () = 7

6. (-25)×() = -100 Divide both sides by -25 to isolate (): () = -100 / -25 () = 4

So, the values of (*) for each equation are:

1. (*) = -3
2. (*) = -4
3. (*) = 6
4. (*) = -9
5. (*) = 7
6. (*) = 4