Question

Equações de 9×+9+3×=15

Answer 1

9x +9 +3x = 15

9x +3x = 15 -9

12x = 6

    x = 6/12

    x = 1/2

Answer 2

9x + 9 + 3x = 15

12x = 15 - 9

12x = 6

x = 6/12

x = 1/2

Forte abraço!