Example

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

Question

$$a+40=6a$$

Answer

a=8

Solution


Subtract \(a\) from both sides.
\[40=6a-a\]
Simplify  \(6a-a\)  to  \(5a\).
\[40=5a\]
Divide both sides by \(5\).
\[\frac{40}{5}=a\]
Simplify  \(\frac{40}{5}\)  to  \(8\).
\[8=a\]
Switch sides.
\[a=8\]
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