66-(x-13)=25
66 – x + 13 = 25
– x = 25 – 13 – 66
-x = -54
x = 54
(65-y)+18=48
65 – y + 18 = 48
– y = 48 – 18 – 65
-y = -35
y = 35
(x+14)-5=16
x + 14 – 5 = 16
x = 16 + 5 – 14
x = 7
66-(x-13)=25
66 – x + 13 = 25
– x = 25 – 13 – 66
-x = -54
x = 54
(65-y)+18=48
65 – y + 18 = 48
– y = 48 – 18 – 65
-y = -35
y = 35
(x+14)-5=16
x + 14 – 5 = 16
x = 16 + 5 – 14
x = 7