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katrin [286]
3 years ago
13

If

{1}{7} x +\frac{1}{3} y=4" alt="\frac{1}{7} x +\frac{1}{3} y=4" align="absmiddle" class="latex-formula">, then what does 3x + 7y equal?
A.) 21
B.) 84
C.) -21
D.) 10
Mathematics
2 answers:
NemiM [27]3 years ago
6 0
B is the answer to the question
Y_Kistochka [10]3 years ago
4 0
B would be the answer html bit
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Answer:

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