Answer:
c = 10
w = -6
r = 6
b = 1.5 or 3/2
Explanation:
1) 2c + 4 = 7c - 46
2c - 2c + 4 = 7c - 2c - 46
4 + 46 = 5c - 46 + 46
50 = 5c
c = 10
2) -3w + 8 = -6w - 10
-3w + 6w + 8 = -6w + 6w - 10
3w + 8 - 8 = -10 - 8
3w = -18
w = -6
3) (1/6)r + 1 = 3r - 16
(1/6)r - (1/6)r + 1 = 3r - (1/6)r - 16
1 + 16 = (17/6)r - 16 + 16
(17/6)r = 17
r = 17*(6/17)
r = 6
4) -7b - 1 = -5b - 4
-7b + 7b - 1 = -5b + 7b - 4
-1 + 4 = 2b - 4 + 4
2b = 3
b = 3/2 or 1.5
Hope this helps!