Mathematics, 15.11.2019 20:31 netflixacc0107

If the first equation is multiplied by 3 and then the equations are added, the result is

3x + y = 3
x - 3y = -2

10x = 11
10x = 7
8x = 7

Answers: 2

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If the first equation is multiplied by 3 and then the equations are added, the result is