1)3-5/7t=1-3/7t
3-1=5/7t-3/7t
2=2/7t
t=7
2) 1/8u-2=5/8u+1
-2-1=5/8u-1/8u
4/8u=-3
u=-3/(1/2)
u= -6
3) 2/5z-7=3
2/5z=3+7
2/5z=10
z=10/(2/5)
z = 25
1)3-5/7t=1-3/7t
3-1=5/7t-3/7t
2=2/7t
t=7
2) 1/8u-2=5/8u+1
-2-1=5/8u-1/8u
4/8u=-3
u=-3/(1/2)
u= -6
3) 2/5z-7=3
2/5z=3+7
2/5z=10
z=10/(2/5)
z = 25