May 2022 1 5 Report
które z poniższych przekształceń zostal poprawnie wykonane

1. 5x -3y +2x -6y =7y -3y

2. (3x +3y) +(x+2y)-(3x-y)=x+6y

3. (3x +y)+(x+2y)-(3x-y)=x+2y

na dzis prosze

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