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make x the subject of the formula y=x-a

 Oct 6, 2022
 #1
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x= -1

 Oct 6, 2022
 #2
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Hi Guest!

\(y=x-a \\ \text{Add a to both sides:} \\ y+a=x-a+a \\ \therefore y+a=x \\ \iff x=y+a\)

I hope this helps!

 Oct 6, 2022

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