Remove parentheses.
\[2x+{1}^{}\times 2+3=12\]
Subtract \({1}^{}\times 2\) from both sides.
\[2x+3=12-{1}^{}\times 2\]
Subtract \(3\) from both sides.
\[2x=12-{1}^{}\times 2-3\]
Simplify \(12-{1}^{}\times 2\) to \(12-{1}^{}\times 2\).
\[2x=9-{1}^{}\times 2\]
Divide both sides by \(2\).
\[x=\frac{9-{1}^{}\times 2}{2}\]
Decimal Form: 4.5
x=(9-1^*2)/2
