Make bottom number same
ok, so remember
(a-b)(a+b)=a²+b²
so
to get from (y-x) to (y²-x²), multiply 2nd fraction by (y+x)
so multiply 2nd fraction by (y+x)/(y+x)

=

=
Answer:
6 x
= 4
Step-by-step explanation:
Answer:
x = 87/28
Step-by-step explanation:
Answer:
144x=1728
Step-by-step explanation:
144 credit hours and x will be the cost per hour equals the total 1728. Its 12 dollars an hour
Answer: The correct answer is D
Step-by-step explanation: