1)-3y-9y+5y=2.1
– 3y – 9y + 5y = 2,1
-7y = 2.1
y = -0.3
2)-2.4m+3.8m+1.2m=-0.052
– 2,4m + 3,8m + 1,2m = – 0,052
2.6m = -0.052
m = -0.02
1)-3y-9y+5y=2.1
– 3y – 9y + 5y = 2,1
-7y = 2.1
y = -0.3
2)-2.4m+3.8m+1.2m=-0.052
– 2,4m + 3,8m + 1,2m = – 0,052
2.6m = -0.052
m = -0.02