Question

Verify:
a. [(-18)+4]+6=(-18)+(6+4)
b. 19+[(-3)+9]=[19+(-3)]+9
c. (11+3)+(-9)=11+[3+(-9)]

Answer 1

Step-by-step explanation:

a= -18+4+6=-18+6+4

=-14+6=-12+4

=-8=-8

b=19-3+9=19-3+9

=19+6=16+9

=25=25

c=11+3-9=11+3-9

=14-9=11-6

5=5

hope it helps

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Answer 2

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