document.write( "Question 52894: Could you please help me find the missing step to reach the answer in the following problem?\r
\n" ); document.write( "\n" ); document.write( "Solve for the indicated variable:
\n" ); document.write( "S=(rL-a)/(b-a); solve for a.
\n" ); document.write( "The answer to this problem is a=Sb-rL/S-1\r
\n" ); document.write( "\n" ); document.write( "My first step is multiplying both sides by (b-a) and getting:
\n" ); document.write( "Sb-Sa=rL-a
\n" ); document.write( "Next I try to get both a's on the same side, so I move -Sa over to the right:
\n" ); document.write( "Sb=rL-a+Sa
\n" ); document.write( "Then I realize that once the S is gone on the right side, the a's will cancel. \n" ); document.write( "

Algebra.Com's Answer #35302 by rchill(405) $\"\"$ $\"About$

You can put this solution on YOUR website!
You've done everything just fine up to $\"Sb=rL-a%2BSa\"$ , so let's start from there. Now subtract rL from both sides and we get $\"Sb-rL=Sa-a\"$ . Now let's factor the right side to get $\"Sb-rL=a%28S-1%29\"$ . Now we can solve for $\"a\"$ bu just dividing both sides by (S-1): $\"%28Sb-rL%29%2F%28S-1%29=a\"$ . \n" ); document.write( "

\n" );