2 years ago

How can you solve 6+4/5B=9/10b

1 answer:

8 0

$6+\frac{4}{5}b=\frac{9}{10}b \ \ \ |-\frac{4}{5}b \\ \\
6=\frac{9}{10}b-\frac{4}{5}b \\ \\
6=\frac{9}{10}b-\frac{8}{10}b \\ \\
6=\frac{9-8}{10}b \\ \\
6=\frac{1}{10}b \ \ \ |\times 10 \\ \\
b=60$

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