Question

9 ( x - 1 ) = 7 ( x + 3 )​

Answer 1

Resposta:

9(x-1) = 7 (x+3)

9x - 9 = 7x + 21

9x - 7x = 21 + 9

2x = 30

x = 30/2

x = 15

Answer 2

9 ( x - 1 ) = 7 ( x + 3 )​

9× ( x - 1 ) = 7×( x + 3 )

9x-9=7x+21

9x-7x=21+9

2x=30

x=30/2

x=15

ESPERO TER AJUDADO(;