a) 19X - 0,18 = 19,0119X = 19,01 + 0,1819X = 19,19X = 19,19 / 19X = 1
b) 2,27 - 2X = 0,09-2X = 0,09 - 2,27-2X = -2,18X = -2,18 / -2X = 1,09
c) 5,08 + 12X = 29,7412X = 29,74 - 5,0812X = 24,66X = 24,66 / 12X = 2,055
a) 19X - 0,18 = 19,01
19X = 19,01 + 0,18
19X = 19,19
X = 19,19 / 19
X = 1
b) 2,27 - 2X = 0,09
-2X = 0,09 - 2,27
-2X = -2,18
X = -2,18 / -2
X = 1,09
c) 5,08 + 12X = 29,74
12X = 29,74 - 5,08
12X = 24,66
X = 24,66 / 12
X = 2,055