21-3(b-7)=b+20can someone please answer this... – InterviewSolution

1.

21-3(b-7)=b+20can someone please answer this...

Answer»

-5

Step-by-step explanation:

21-3(B-7)=b+20

=> 21-3b-21=b+20

=> -3b=b+20

=> -3b-b=20

=> -4b=20

=> b= -20/4= -5

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