Example

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

Question

$$560=2+9n-9$$

Answer

n=63

Solution


Simplify  \(2+9n-9\)  to  \(9n-7\).
\[560=9n-7\]
Add \(7\) to both sides.
\[560+7=9n\]
Simplify  \(560+7\)  to  \(567\).
\[567=9n\]
Divide both sides by \(9\).
\[\frac{567}{9}=n\]
Simplify  \(\frac{567}{9}\)  to  \(63\).
\[63=n\]
Switch sides.
\[n=63\]
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