Respostas

2014-08-30T11:33:36-03:00
2x + 16 = 9x + 22
2x = 9x + 22 - 16
2x - 9x = 6
-7x = 6
X = 6/-7
X = -0,857142....

2m - 1 + 3m = m +26
5m - 1 = m + 26
5m = m + 26 + 1
5m - m = 27
4m = 27
m = 27/4
m = 6,75