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Bogdan [553]
3 years ago
12

Rewrite the expression 7x+21=

Mathematics
2 answers:
Furkat [3]3 years ago
7 0
You must find the factors of 7 and 21. Which is 7.

7(x+3)

And that's one way to rewrite this expression :)
Dima020 [189]3 years ago
5 0
Minus the 21 from the other side of the equation making it 7x=-21 then u divide the 7 from the x to the -21 resulting in x=-3
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