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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
 one year ago
 one year 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
 one year ago
 one year ago

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HotskullBest ResponseYou've already chosen the best response.0
so far i hve 5x=2? this is right
 one year ago

SujayBest ResponseYou've already chosen the best response.1
Yup, you got it right so far.
 one year ago

HotskullBest ResponseYou've already chosen the best response.0
so, do i hve to divide 2 by 5 now?
 one year ago

SujayBest ResponseYou've already chosen the best response.1
Perfect, now substitute it into either equation to come up with the value of the other variable.
 one year ago

HotskullBest ResponseYou've already chosen the best response.0
okay 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?
 one year ago
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