 <translate> 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). <yor> Da lori alaye ti a fun, awọn wọnyi equation le wa ni derviated: 1% * x + 5% * y + 3% * z = 7% * (x + y + z) Lẹ́yìn náà lo algebra láti mọ 6%*x = -2%*y - 4%*z. Nítorí náà, 3x = -1y - 2z. Nítorí náà, ìdáhùn náà ni (A). 