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Deangelo Stevenson
Mathematics
1 May, 18:20
4 + 4 / 5 b = 9 / 10 b
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Tristan Cabrera
1 May, 18:39
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Step-by-step explanation:
The first step is getting 4 on the other side so you minus 4 to get 4/5b=9/10b
you then subtract 9/10 from 4/5 in order to do this you need to get 4/5 a denominator of 10, so you take 4/5 times 2/2 to get 8/10
So now you can take 8/10-9/10=-1/10
You now have - 1/10b=-4
you then times - 10 on both sides to get b by itself
b = - 4 * - 10
b=40
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