Question

Ayudenme Son Ecuaciones

Answer 1

Explicación paso a paso:

5x - 10 = 15

      5x = 15 + 10

      5x = 25

        x = 25 % 5

        x = 5

Answer 2

5× - 10 = 15

      5× = 15-10

      5× =  5

        × = 5/5

        × = 1

3× + 9 = 18      

     3× = 18-9

       × = 9/3

       × = 3

7 - × = 12

    × = 12+7

    × = 19

× + 3 = 18

     × = 18 - 3

     × = 15

2 { 1 + 2× } = 10

           2× = 10 - 1 ÷ 2

             × = 4.5

× - 3 = 3 - ×

× + × = 3 + 3

   2× = 6

     × = 6/2

     × = 3