Question

x+ 5 = 7

x+ 9 = 2

6+ x = 9
me ajudem ​

Answer 1

Resposta:

x + 5 = 7

x = 7 - 5

x = 2

x + 9 = 2

x = 2 - 9

x = - 7

6 + x = 9

x = 9 - 6

x = 3