 
<translate> Dangane da bayanan da aka bayar, ana iya fitar da lissafi mai zuwa: 1% * x + 5% * y + 3% * z = 7% * (x + y + z) Sai ka yi amfani da algebra ka gano 6%*x = -2%*y - 4%*z. Saboda haka, 3x = -1y - 2z. Amsar ita ce (A). <eng> Based on the given information, the following equation could be dervied: 1% * x + 5% * y + 3% * z = 7% * (x+y+z)
Then use algebra to figure out 6%*x = -2%*y - 4%*z. Thus, 3x = -1y - 2z. So, the answer is (A). 