Question 628901
I assume your equation is:
{{{R = dy/(d+y)}}}
because what you posted means
{{{R = dy/d+y}}}
And in this equation the d's cancel out making this a very simple equation. If my assumption is correct, then please put parentheses around multiple-term denominators (and numerators).<br>
{{{R = dy/(d+y)}}}
First let's get rid of the fraction. Multiplying both sides by d+y we get:
{{{(R)(d+y) = (dy/(d+y))(d+y)}}}
which simplifies to:
{{{Rd + Ry = dy}}}
Next we get the y terms on one side (and the terms that are not y terms on the other side). We can do this all at once by subtracting Ry from each side:
{{{Rd = dy - Ry}}}
The terms on the right are not like terms so we cannot subtract them. But they both have a factor of y which we can factor out:
{{{Rd = y(d-R)}}}
And now we can divide both sides by (d-R):
{{{Rd/(d-R) = y}}}
And, since the y is now all by itself, we are finished!