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xy+x-4y=11, xy-x-4y=4

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xy+x−4y=11, xy−x−4y=4

Solution

(

x=72 ,

y=−15

)

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Solution steps

One step at a time

[

xy+x−4y=11

xy−x−4y=4

]

Subtract the equations

xy+x−4y=11

−

xy−x−4y=4

xy+x−4y−(xy−x−4y)=11−4

Simplify

2x=7

Solve 2x=7: x=72

Plug the solutions x=72 into xy+x−4y=11

For xy+x−4y=11, subsitute x with 72 : y=−15

Verify solutions by plugging them into the original equations

Therefore, the final solution for xy+x−4y=11, xy−x−4y=4 is

(

x=72 ,

y=−15

)

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−▭▭	<	7	8	9	÷	`AC`
+▭▭	>	4	5	6	×	☐☐☐
×▭▭	(	1	2	3	−	`x`
▭ \|▭	)	.	0	=	+	`y`

xy+x-4y=11, xy-x-4y=4

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