1) x + 5/7 = (-3/8) * 1 1/3

x + 5/7 = -1/2

x + 10/14 = -7/14

x = -7/14 - 10/14

x = -17/14 = -1 3/14

2)y - 7/12= -2

y = -2 + 7/12

y = - 1 3/12 = -1 1/4

3)8 + x = -0,5

x= -0,5 - 8

x= -8,5

4)3/10 - y = 3 3/4

y= 3/10 - 3 3/4

y= -3 9/20