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myrzilka [38]
3 years ago
9

Can you help me please?

Mathematics
1 answer:
AnnZ [28]3 years ago
3 0
So the original equation is 3a+a+b=54.6 which is 4a+b=54.6 and so you get the equation:

4(8.7)+b=54.6
34.8+b=54.6

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