Thread: Equation Manipulation

Please manipulate these equations as specified, so that I can compare them to the other problems I need to do.

1. (w/v) = (g/(v-w)) to get 1/v + 1/w = 1/g
2. (w - g) = f²(1/(v-g)) into 1/v + 1/w = 1/g

Hello Audaciity

Originally Posted by Audaciity

Please manipulate these equations as specified, so that I can compare them to the other problems I need to do.

1. (w/v) = (g/(v-w)) to get 1/v + 1/w = 1/g
2. (w - g) = f²(1/(v-g)) into 1/v + 1/w = 1/g

I think you must have misunderstood the questions here. Are and functions? Give us the complete question please, because what you have written here doesn't make sense.

Grandad

They are equations, not functions.

I am asking people to show the steps to rearrange (and manipulate) the equations.

How do I get from w/v = g/(v-w)
to 1/v + 1/w = 1/g ?

How do I get from w-g = f²(1/(v-g))
to 1/v + 1/w = 1/g ?

Hello Audaciity

Originally Posted by Audaciity

I am asking people to show the steps to rearrange (and manipulate) the equations.

How do I get from w/v = g/(v-w)
to 1/v + 1/w = 1/g ?

How do I get from w-g = f²(1/(v-g))
to 1/v + 1/w = 1/g ?

I have already replied to your question. Unless you have anything further to tell me, I repeat: the question doesn't make sense.

Grandad

Originally Posted by Audaciity

Please manipulate these equations as specified, so that I can compare them to the other problems I need to do.

1. (w/v) = (g/(v-w)) to get 1/v + 1/w = 1/g
2. (w - g) = f²(1/(v-g)) into 1/v + 1/w = 1/g

The point Grandad was making is that you can't change from one to the other, they simply aren't equivalent. From w/v= g/(v-w), you can get that 1/g= v/(w(v-w)) but that is NOT equal to 1/v+ 1/w.

The second one has an "f" in it but the equation you want to change it into doesn't. Again, that is NOT possible.