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Romashka-Z-Leto [24]
3 years ago
5

50p thanks to whoever helps :)

Mathematics
1 answer:
barxatty [35]3 years ago
4 0

Answer:

1. 1+(2+3)

2. (1 +2)+3

3. (2*3)*4

4. 2*(3*4)

5. 3*2

6. 2+1

7. 2(x+3)

8. 4x+3

9. (4*3)+(4*2)

10. (-2*5)+(-2*x)

11. (3*10)-(3*y)

12. (-3*4)-(-3*x)

13. commutative property

14. commutative property

15. distributive property

16. associative property

17. 1+(-3)

18. 4+3

19. -(-4-3)

20. -4+3

Hope this helps

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A straight line equals 180°, and they give you the one angle of 56°, so you know 56+ the other equation has to equal 180

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You can check by filling it in.


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