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Mathematics, 26.07.2021 19:10 lclaudettecarte8346

X+y=4 x-2y=-5
If the first equation is multiplied by 2 and then the equations are added, the result is
=3
3 = 13
o3х=3 3

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X+y=4 x-2y=-5
If the first equation is multiplied by 2 and then the equations are added, the...

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