Easy One Guys

Diamond-Leopard

New member
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Jul 9, 2018
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2
(Y*0.85)-3=X

How do we make Y the Subject?
 

tkhunny

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Apr 12, 2005
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Denis

Senior Member
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Feb 17, 2004
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What happens if you add 3 to both sides?
 

HallsofIvy

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Joined
Jan 27, 2012
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4,787
Something has been done to Y to make it X. To go back from X to Y, do the opposite. Here, Y is multiplied by 0.85 and then 3 is subtracted. The opposite of "multiply by 0.85" is "divide by 0.85". The opposite of "subtract 3" is "add 3". And, of course, you must reverse the order of those operations. So first add 3 to both sides, the divide both sides by 0.85.
 
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