Respuesta :

Answer:

X= 21

Step-by-step explanation:

34 + -13 = 21

Answer:

x=21

Step-by-step explanation:

Hello

The solution to the equation is the numerical values ​​of the letters  for which equality is true.

To  find the value of x , you have to isolate x. to do this, you pass the 13 that is positive number to the other side of the equation,When you pass a positive number to the other side of the equation it passes as negative number.

x+13=34

x=34-13

x=21

Have a great day