Is this what you mean? 3x+4x+6=13 Ok if this is it then you combine like terms. In this case our like terms are 3x and 4x. That will give us: 7x+6=13 Now subtract 6 from each side. 7x= 7 Divide each side by 7 X= 1
I think the person answering the question would need more information about the phrase But if you really need the answer p = price of a pair of basketball shoes