Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$b-4=5$$

Answer

b=9

Solution


Add \(4\) to both sides.
\[b=5+4\]
Simplify  \(5+4\)  to  \(9\).
\[b=9\]
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