Question

Solve using method of your choice. PLease help 28 points

Answer 1

$7x+y=-20\\ x-3y=-50\\\\ 21x+3y=-60\\ \underline{x-3y=-50}\\ 22x=-110\\ x=-5\\\\ -5-3y=-50\\ 3y=45\\ y=15$

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$(5x-8y)^2=-25$
No solution in real numbers.