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ludmilkaskok [199]
3 years ago
14

Помогите пж пж пж пж пж пж пж ​

Mathematics
1 answer:
Mars2501 [29]3 years ago
3 0

Answer:

1.a) -2*(-7)=14

b) -3*10= -30

2. a) 4a - 5a = -1a

b) 3x + 7x -2x = 8x

3. a) -9

b) 10 5/8

4. a) -0.04

b)-6.25

5. - 3/5xy

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