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Mathematics, 18.10.2019 10:10 Jocelyn0925

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

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

a. 10x = 11
b. 10x = 7
c. 8x = 7

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

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