document.write( "Question 30318: what is r in the following equation:\r
\n" ); document.write( "\n" ); document.write( "12(4r-5r/6) + 20 = 19r - 15 + 45r/2 and how do you solve this? \n" ); document.write( "

Algebra.Com's Answer #16987 by Cintchr(481) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+12%284r-5r%2F6%29+%2B+20+=+19r+-+15+%2B+45r%2F2+\"$ First distribute the 12
\n" ); document.write( " $\"+48r-60r%2F6+%2B+20+=+19r+-+15+%2B+45r%2F2+\"$ reduce the fraction on the left
\n" ); document.write( " $\"+48r-10r+%2B+20+=+19r+-+15+%2B+45r%2F2+\"$ combine like terms on the left
\n" ); document.write( " $\"+38r+%2B+20+=+19r+-+15+%2B+45r%2F2+\"$ change the 19r to a denominator of 2
\n" ); document.write( " $\"+38r+%2B+20+=+38r%2F2+-+15+%2B+45r%2F2+\"$ combine like terms on the right
\n" ); document.write( " $\"+38r+%2B+20+=+83r%2F2+-+15+\"$ Make ALL terms have a denom of 2
\n" ); document.write( " $\"+76r%2F2+%2B+40%2F2+=+83r%2F2+-+30%2F2+\"$ since this is an equation and all are like denoms. Drop them.
\n" ); document.write( " $\"+76r+%2B+40+=+83r+-+30+\"$ subtract 76r from both sides
\n" ); document.write( " $\"+40+=+7r+-+30+\"$ add 30 to each side
\n" ); document.write( " $\"+70+=+7r+\"$ divide by 7 on each side
\n" ); document.write( " $\"+70%2F7+=+r+\"$ reduce
\n" ); document.write( " $\"+10+=+r+\"$ Watch your multiplying. Doing this at 1 am you can make a silly little mistake like 12*4 = 36 and you will get a messed up answer :-P\r
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