5.(m+1)-3.(2m+1)=4.(5-m)
5m + 5 - 6m - 3 = 20 - 4m
5m - 6m + 4m = 20 - 5 + 3
3m = 18
m =6
2.(1-t)+1=3.(t-3)-2t
2 - 2t + 1 = 3t - 9 - 2t
3t-2t+2t = 9+2+1
3t = 12
t = 4
2.(y-2)+5.(2-y)=-3.(2y+2)
2y - 4 + 10 - 2y = - 6y - 6
2y - 2y + 6y = - 6 - 10 + 4
6y = - 12
y= - 2
