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GarryVolchara [31]
3 years ago
12

Given the system of linear equations.

Mathematics
1 answer:
anastassius [24]3 years ago
3 0
X + y = 7
2x + y = 5

multiply 1st equation by -1, then add equations --- this is correct
multiply 2nd equation by -1, then add equations -- this is correct
multiply 1st equation by -2, then add equations -- this is correct
multiply 1st equation by 2 and 2nd equation by -1, then add -- correct

It appears all but 1 of the answer choices will work


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