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 2 years ago
Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution.
2x − y = 5
3x + y = −7
 2 years ago
Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. 2x − y = 5 3x + y = −7

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Hotskull
 2 years ago
Best ResponseYou've already chosen the best response.0so far i hve 5x=2? this is right

Sujay
 2 years ago
Best ResponseYou've already chosen the best response.1Yup, you got it right so far.

Hotskull
 2 years ago
Best ResponseYou've already chosen the best response.0so, do i hve to divide 2 by 5 now?

Sujay
 2 years ago
Best ResponseYou've already chosen the best response.1Perfect, now substitute it into either equation to come up with the value of the other variable.

Hotskull
 2 years ago
Best ResponseYou've already chosen the best response.0okay so now i have 2(0.4)y=5. den 0.8y=5. dont i add 0.8 to 5? if so i got 4.2? i den plug it into one of the equations 2xy=5 and the answer isnt the same. wat did i do wrong?
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