|February 26th, 2017, 04:52 AM||#1|
Joined: Feb 2017
Making a letter the subject of an equation
I've been studying maths for a few months but I'm really struggling with making a letter the subject when it is on both sides of the equations (in a fraction) i.e. please see below (how would i make t the subject)? The part I struggle with is removing t from one side (there is only '1' 't' on either side so how do i get rid of one without removing the other?)
5y - 11/t = 13 - 7y/t
Any help is much appreciated
|February 26th, 2017, 05:00 AM||#2|
Joined: Jul 2011
start by multiplying every term by $t$ ...
move all terms with a factor of $t$ to the same side, all terms w/o to the other side ...
factor out $t$ ...
divide both sides by $5y-13$ ...
|March 3rd, 2017, 04:59 AM||#4|
Joined: Jan 2015
Equivalently, starting with
add to both sides:
Subtract 13 from both sides:
Invert both sides:
Finally, multiply both sides by 11- 7y:
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