Example

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

Question

$$21+x=26$$

Answer

x=5

Solution


Subtract \(21\) from both sides.
\[x=26-21\]
Simplify  \(26-21\)  to  \(5\).
\[x=5\]
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