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Can someone do help with any of these please?

Can someone do help with any of these please?-example-1

1 Answer

4 votes
39.

|z+7|=12/3
|z+7|=4
z+7=4
-(z+7)=4
solve the first equation:
z+7=4
z=-3
solve the second equation:
-(z+7)=4
z=-11

z=-11,-3

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