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Mathematics, 27.05.2020 23:00 raul20030603

Solve the system.
x + y = 8
2x2 - y=-5
Add the equations, then choose the result.
3x2 =-13
3x2 = 3
2x2 + x = 3
2x2=-13

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Solve the system.
x + y = 8
2x2 - y=-5
Add the equations, then choose the result.<...

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