Question

what should be added to 15x+13xy-6y to obtain-7x+12xy-7y?
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Answer 1

Answer:

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Answer 2

Let a be added to 15x+13xy-6y to get -7x+12xy-7y

Therefore 15x+13xy-6y+a = -7x+12xy-7y

Now move 15x+13xy-6y to RHS Of the equation


You will get a = -7x+12xy-7y -15x-13xy+6y

a = -22x-xy-y


And a was added to 15x+13xy-6y to obtain 7x+12xy-7y


Therefore your answer will be -22x-xy-y



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