The expression 7+3x+4 represents the perimeter of the triangle. Simplify the expression.

7+3x+4

To simplify the expression 7 + 3x + 4, we combine like terms. Like terms are terms that have the same variable raised to the same power.

In this expression, the terms 7 and 4 are constants, while 3x is the term with a variable. Since there are no other terms with "x," we can combine them.

Combining the like terms, we have:

7 + 4 = 11

So the simplified expression for the perimeter of the triangle is 11 + 3x.

7x+7

It would be 11+7x