Question

2) 10x 90 3) 13y=78 4) 25m=375 5) 2x=-12 6) -3K-15 7) -12y=-36 8) 31B=-93 9) -4x=1,2​

Answer 1

Ответ:

Объяснение:

2) 10x = 90

    х = 90 : 10

    х = 9

______________

  10 * 9 = 90

      90 = 90

3) 13y=78

     у = 78 : 13

     у = 6

___________

13 * 6 = 78

    78 = 78

4) 25m=375

     m = 375 : 25

     m = 15

______________

25 * 15 = 375

    375 = 375

5) 2x=-12

х = -12 : 2

х = -6

_____________

2 * (-6) = -12

     -12 = -12

6) -3K=15

к = 15 : (-3)

к = -5

__________

-3 * (-5) = 15

       15 = 15

7) -12y=-36

у = -36 : (-12)

у = 3

____________

-12 * 3 = -36

   -36 = -36

8) 31B=-93

в = -93 : 31

в = - 3

____________

31 * (-3) = -93

     -93 = -93

9) -4x=1,2​

х = 1,2 : (-4)

х = -0,3

__________

-4 * - 0,3 = 1,2

         1,2 = 1,2

Answer 2

Ответ:

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Answer 3

It seems like you've provided a list of equations, and it looks like you want to solve for the variables in each equation. Let's solve them one by one:

1. 10x = 90 Divide both sides by 10 to isolate x: x = 90 / 10 x = 9

2. 13y = 78 Divide both sides by 13 to isolate y: y = 78 / 13 y ≈ 6

3. 25m = 375 Divide both sides by 25 to isolate m: m = 375 / 25 m = 15

4. 2x = -12 Divide both sides by 2 to isolate x: x = -12 / 2 x = -6

5. -3K = -15 Divide both sides by -3 to isolate K: K = -15 / -3 K = 5

6. -12y = -36 Divide both sides by -12 to isolate y: y = -36 / -12 y = 3

7. 31B = -93 Divide both sides by 31 to isolate B: B = -93 / 31 B ≈ -3

8. -4x = 12 Divide both sides by -4 to isolate x: x = 12 / -4 x = -3

9. -4x = 1.2 Divide both sides by -4 to isolate x: x = 1.2 / -4 x = -0.3

It looks like you have successfully solved for the variables in each equation. If you have any further questions or need additional assistance, please feel free to ask!