$$ \begin{aligned} -14+6b+7-2b &= 1+5b&& \text{simplify left and right hand side} \\[1 em]4b-7 &= 5b+1&& \text{move the $ \color{blue}{ 5b } $ to the left side and $ \color{blue}{ -7 }$ to the right} \\[1 em]4b-5b &= 1+7&& \text{simplify left and right hand side} \\[1 em]-b &= 8&& \text{switch signs on both sides} \\[1 em]b &= -8&& \\[1 em] \end{aligned} $$

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