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Mathematics, 27.11.2019 11:31 rogersdeloris1ovgm3b

Me! i really need !

1. what is the simplified form of the following expression?

6m2 + 7.2n -4n + 2.5m2 -n

2. simplify the following expression

1/2(22m+30)

3. which sum or difference is equivalent to the following expression

3x+2/6

4. what is the simplified form of the following expression?

-(3y - 9z)

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