Work Step by Step
We start by distributing. We have $7+b=11(b-3)$ is $7+b=11b-33$. Now, we want to isolate b with its coefficient. We can accomplish this by adding $-b$ and $33$ to both sides. That gives us $40=10b$, so $4=b$.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.