Answers

2014-09-18T14:23:48+08:00
2014-09-18T15:34:10+08:00
44

2x+x=132
3x=132
\frac{3x}{3} = \frac{132}{3} (divide both by 3)
x=44

To Check:
2x+x=132
2(44)+44=132
88+44=132

0