5.5-9+(-6.46m)=15+5.5-6.56m
5.5 – 9 – 6.46m = 15 + 5.5 – 6.56m
– 6,46m + 6,56m = 5,5 + 15 + 9 – 5,5
0.1m = 24
m = 240
5.5-9+(-6.46m)=15+5.5-6.56m
5.5 – 9 – 6.46m = 15 + 5.5 – 6.56m
– 6,46m + 6,56m = 5,5 + 15 + 9 – 5,5
0.1m = 24
m = 240