I realized, sometimes when I post a question, a Guest comes and answers it, but puts no explanation, and they are always wrong.

2, 4, 2 is incorrect

1, -7 is incorrect

I already said thank you, and I gave Geno a point.

Thank you for leading me to the right solution.

What do you mean by 3 points?

I never tried to be rude to Geno. I never said that I would take all the credit. You could have said that I forgot to thank Geno.

I accidentally posted the same question twice because my internet was acting slow.

Therefore the equation should be (x+7)(y-1)=-10.

I see what you did wrong when you expanded y(x + 7) = x - 3 and got xy - 7y = x - 3, the -7 should have been a +7.

I tried the answer -7, -1, 4. But it was incorrect.

I'm sorry, but your answer is incorrect.