Can someone help me figure out how to solve these problems?

V=r+at; solve for a





and





5-2p= 6q+1; solve for p





My book isn't helping me much. Please help me.


And can someone give me a website with more info on these kinds of problems? I have A LOT of them to work.Can someone help me figure out how to solve these problems?
v = r + at


v - r = r + at - r


v - r = at


(v - r)/t = at/t


(v - r)/t = a





5 - 2p = 6q + 1


5 - 2p - 1 = 6q + 1 - 1


4 - 2p = 6q


4 - 2p - 6q = 6q - 6q


4 - 2p - 6q = 0


4 - 2p - 6q + 2p = 0 + 2p


4 - 6q = 2p


(4 - 6q)/2 = 2p/2


(4/2) - (6q/2) = p


2 - 3q = p





From searching ';solving linear equations'; using Google:


http://www.purplemath.com/modules/solvel鈥?/a>


http://education.yahoo.com/homework_help鈥?/a>





There are millions of other websites available. Also try library books.Can someone help me figure out how to solve these problems?
The only way you can solve these is in terms of the other variables.


For instance, you can solve for a but in terms of V, r, and t.





1) V = r+at


V-r = at


(V-r)/t = a


__________________





2) 5-2p = 6q+1


5-6q-1 = 2p


(4-6q)/2 = p


2-3q = p





Hope that helped!
Do you want to make ';a'; the subject in question 1?


In that case it would be a=(v-r)/t





For the second one i got


5-2p=6q+1


2p=-6q+4


p=-3q+2


5-2(3q+2)=6q+1


5-6q-4=6q+1


12q=0


q=0





5-2p=6(0)+1


p=2





q=0 and p=2
V = r + at





r + at = V





at = V-r





a = ( V-r)/ t %26lt; ----------- ans





~~~~~~~~~~~~~~~





5-2p = 6q + 1





5 = 6q + 1 + 2p





5 - 6q -1 = 2p





( 5-6q-1 )/2 = p %26lt; ---------------- ans
V=r+at


V-r+at


V-r/t =at/t





V-R/t=a

freckles