Respuesta :

Answer:

the answer is 3

7x + 9= 30

7x = 21

x = 3

vanessaakaraiwe123

Answer:

x = 3

Step-by-step explanation:

Collect like terms;

7x + 9 = 30

Subtract 9 from both sides;

7x = 21

Divide both sides by 7;

x = 3