(4*b-16):2=10 (2+x:7)*8=72 35:(15-y:8)=5 (t*3+5):4=8

(4 * b - 16) : 2 = 104 * b - 16 = 10 * 2 = 204 * b = 20 + 16 = 36b = 36 : 4 = 9(2 + x : 7) * 8 = 722 + x : 7 = 72 : 8 = 9x : 7 = 9 - 2 = 7x = 7 * 7 = 4935 : (15 - y : 8) = 515 - y : 8 = 35 : 5 = 7y : 8 = 15 - 7 = 8y = 8 * 8 = 64(t * 3 + 5) : 4 = 8t * 3 + 5 = 8 * 4 = 32t * 3 = 32 - 5 = 27t = 27 : 3 = 9