B(x)=15-4x

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Solution for B(x)=15-4x equation:



(B)=15-4B
We move all terms to the left:
(B)-(15-4B)=0
We add all the numbers together, and all the variables
B-(-4B+15)=0
We get rid of parentheses
B+4B-15=0
We add all the numbers together, and all the variables
5B-15=0
We move all terms containing B to the left, all other terms to the right
5B=15
B=15/5
B=3

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