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KatRina [158]
3 years ago
14

Solve b=3/4a a+b=21 please need help

Mathematics
2 answers:
Anna007 [38]3 years ago
5 0
Hello there! Your answer should be {b, a} = {9, 12}. 
Please tell me If I was right.
lianna [129]3 years ago
3 0
<span><span>{b,a} = {9,12}</span> HOPE IT HELPS.
</span>
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