Question

AW+WC=AC3x+2x+11=8x-46x+11=8x-4

Answer 1

AW+WC=AC

example:
20+01 = 21
30+08 = 38    
50+02 = 52






3x+2x+11=8x-4
3x+2x-8x = -4 -11
-3x = -15
x = 5    




6x+11=8x-4
6x -8x = -4 -11
-2x = -15
-x = - 7,5
x = 7,5