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professor190 [17]
3 years ago
11

Plz help :)))))))))))))))))))

Mathematics
1 answer:
natita [175]3 years ago
8 0
(2 - 7z)(2 + 7z)
= (2)^2 - (7z)^2
= 4 - 49z^2

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Answer:

x=-6

Step-by-step explanation:

use distributive property on the () and times x and 1 by three

then you subtract 6 from both sides

then subtract three from both sides

then divide both sides by 3

your work would look like this:

3(x+1)+6=-9

3x+3+6=-9

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x=-6

Hope this helps!

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