Respuesta :

X=4

Step-by-step explanation:

Solve for x by moving all terms to the left side

7x+9=13+6x

subtract 6x from both side

7x+9-6x=13

subtract 6x from 7x

x+9=13

subtract 9 from both sides

x=4

The answer is 42x+ 19
Q&A Education