Respuesta :
Answer:
4
Step-by-step explanation:
Im not quite sure how to explain this without a picture. But its the thing where you do the opposite to each side to find the value of X.
Hope this helps!

Answer:
x = 4
Step-by-step explanation:
9x - 13 = 23
+13 +13
9x 36
_ = _
9 9
x=4