Question

ayudenme a resolver estos problemas porfavor

Answer 1

Explicación paso a paso:

1) x + 7 = 15

x = 15 - 7

x = 8

2) 12x = 36

x = 36/12

x = 3

3) 0x = -2

x = 2 + 0

x = 2

nose si estaran bien esas 3 primeras