4 years ago

What is the value of b? 1/3 (2b +9)= 2/3 [b+9/2]

1 answer:

6 0

$\frac{1}{3}(2b+9)=\frac{2}{3}(b+\frac{9}{2})\ \ \ \ | multiply\ by\ 3\\\\
2b+9=b+\frac{9}{2}\ \ \ | multiply\ by\ 2\\\\
4b+18=2b+9\ \ \ \ | subtract \ 2b\\\\
2b+18=9\ \ \ \ | subtract\ 18\\\\
2b=-9\ \ \ \ | divide\ by\ 2\\\\
b=-4,5$

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