Question

8×-3=2×+9
9×-2=4×+18
4×+9=×+39

Answer 1

8x - 3= 2x + 9

8x - 2x= 9 + 3

6x= 12

x= 12/6

x= 2

_______________

9x - 2= 4x + 18

9x - 4x= 18 + 2

5x= 20

x= 20/5

x= 4

_______________

4x + 9= x + 39

4x - x= 39 - 9

3x= 30

x= 30/3

x= 10

Answer 2

Explicação passo-a-passo:

8×-3=2×+9

8x - 2x = 9 + 3

6x = 12

x = 12/6

x = 2

9×-2=4×+18

9x - 4x = 18 +2

5x = 20

x = 20/5

x = 4

4×+9=×+39

4x - x = 39 - 9

3x = 30

x = 30/3

x = 10