Mathematics, 10.09.2021 22:00, shataviasumpter78

I need help with 3 problems. 3(3m-2)=2(3m+3)

7-3r=r-4(2+4)

6.78j-5.2+1.2j=5.53j+2.15

Answers: 3

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I need help with 3 problems. 3(3m-2)=2(3m+3)

7-3r=r-4(2+4)

6.78j-5.2+1.2j=...