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Rom4ik [11]
3 years ago
13

Solve using method of your choice. PLease help 28 points

Mathematics
1 answer:
Burka [1]3 years ago
5 0
7x+y=-20\\
x-3y=-50\\\\
21x+3y=-60\\
\underline{x-3y=-50}\\
22x=-110\\
x=-5\\\\
-5-3y=-50\\
3y=45\\
y=15


-----------------------------------------------------

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