Question

solve for x
$\frac{7}{x+4}$ = 4

Give your answer as an improper fraction in its simplest form.

Answer 1

Answer:

-9/4 = x

Step-by-step explanation:

4 is the same as 4/1

this problem is a proportion which can be solved by cross-multiplying:

7 = 4(x+4)

7 = 4x + 16

-9 = 4x

-9/4 = x