-3.87m+(7-14)=-6+7-3.97m
– 3.87m + 7 – 14 = – 6 + 7 – 3.97m
– 3,87m + 3,97m = 7 – 6 + 14 – 7
0.1m = 8
m = 80
-3.87m+(7-14)=-6+7-3.97m
– 3.87m + 7 – 14 = – 6 + 7 – 3.97m
– 3,87m + 3,97m = 7 – 6 + 14 – 7
0.1m = 8
m = 80