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Mathematics, 15.10.2019 02:00 ineedhelpasap12

1) what is the property of (3+4)=(4+3)
2) what is the property of (1+2)+3=1(2+3)
3) what is the property of -3x2+4+5.3= 4+5.3+-3.2
plz

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1) what is the property of (3+4)=(4+3)
2) what is the property of (1+2)+3=1(2+3)
3) what...
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