A) (x+15) - 8 = 1x + 15 - 8 = 1x + 7 = 1x = 17 - x = 10
B) (24 + x) - 21 = 124 + x - 21 = 1x + 3 = 1x = 10 - x = 7
C) (45 - y) + 18 = 545 - y + 18 = 5-y + 63 = 5-y = 58 - 6-y = -y = 5
A) (x+15) - 8 = 1
x + 15 - 8 = 1
x + 7 = 1
x = 17 -
x = 10
B) (24 + x) - 21 = 1
24 + x - 21 = 1
x + 3 = 1
x = 10 -
x = 7
C) (45 - y) + 18 = 5
45 - y + 18 = 5
-y + 63 = 5
-y = 58 - 6
-y = -
y = 5