3s+4b=11.932s+2b=6.76
4b + 3s = 11.93 ⇒ 4b + 3s = 11.932b + 2s = 6.76 ⇒ 4b + 4s = 13.52 -s = -1.59 s = 1.59 2b + 2s = 6.76 2b + 2(1.59) = 6.76 2b + 3.18 = 6.76 - 3.18 - 3.18 2b = 3.58 2 2 b = 1.79 (b, s) = (1.79, 1.59)