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9a−18b+21c=9, a, minus, 18, b, plus, 21, c, equals

7 answers

here dude
the greatest common factor of 9, 18 and 21 is 3 so that is the number that we'll factor out

to do this divide all three numbers by 3 to get

3(3a-6b+7c)

I hope I've helped!
How are u answering so quickly .-.
im rlly smart, i have a 240 IQ
im not lying
bro you stupid
stupid
not smart
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