First make it that both denominators are the same.
Then add both numerators
Your final answer should be
In order to do this you have to substitute b with 9 and get 3a+9=54, now subtract 9 from both sides to leave a by itself and get 3a=45, now divide 3 in both sides to leave a by itself and get a=15
Hope this helps
we know that
we have
substitute the value of 
in the expression above
therefore
<u>the answer is</u>
The answer to this question is :
Part A
((3x+7)+(4x-2))x
(3x+7)+(4x-2): 7x+5
x(7x+5)
Part B
((3x+7)*(4x-2))x
x(12x²+22x-14)
12x³+22x²-14x
Part C
(3x+7)[4x-2(x)]
4x-2(x)
4x-2x
2x
2x(3x+7)
I hope this helps!!!!!!!
So first (3 1/2) equals to 3+1/2 which is 7/2, same for(2 1/3), 2+1/3=7/3. It's asking for speed in laps per minute, so like how many labs did she swim per minute, which is labs over time——(7/2)/(7/3)=(7/2)*(3/7)=3/2. So she swam 3/2 labs per minute.
