Example

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

Question

$$3x+12=27$$

Answer

x=5

Solution


Subtract \(12\) from both sides.
\[3x=27-12\]
Simplify  \(27-12\)  to  \(15\).
\[3x=15\]
Divide both sides by \(3\).
\[x=\frac{15}{3}\]
Simplify  \(\frac{15}{3}\)  to  \(5\).
\[x=5\]
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