Question

x=24+xy; when x = -12 (please answer problem with steps)

Answer 1

x=24+xy

-12=24+(-12)y ... replace x with -12

-12 = 24 - 12y

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from here, we just isolate y. So we undo the stuff done to y to get it all by itself

-12 = 24 - 12y

-12-24 = 24 - 12y - 24 ... subtract 24 from both sides

-36 = -12y

-12y = -36

-12y/(-12) = -36/(-12) ... divide both sides by -12

y = 3

Answer 2

In step 2, I subtracted 24 from both sides to undo the +24

In step 5, I undid the multiplication of -12 by dividing both sides by -12