Question

.

Answer 1

well, let me copy the first problem down here for us to work on

Answer 2

first thing I can see do do straight away is to simplify the first fraction by cancelling out those 3's

Answer 3

next step is to take a look at our denominators:

x
(x+4)
and 7x

the LCD of these is just x(x+4)(7x) so we want to multiply both sides by x(x+4)(7x)

Answer 4

then we cancel out terms when we can