How do you solve #5/(b+8)=3/(3b+7)#?

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Answer 1 · 2016-10-10T17:21:27

#b=-11/12#

Multiply the denominator on each sides by the numerator on the other side.

#5/(b+8) = 3/(3b+7)#

#5(3b+7)= 3(b+8)#

Open the brackets.

#15b + 35 = 3b+24#

#15b-3b=24-35#

#12b=-11#

#b=-11/12#