X-Y=12000 1.6X-1.1Y=26000 解这个方程组

2024-12-31 01:37:48
推荐回答(2个)
回答1:

X-Y=12000 (1)
1.6X-1.1Y=26000
16X-11Y=260000 (2)
由(1)*11-(2)得
11x-11y-16x+11y=132000-260000
-5x=-128000
x=25600
y=13600

回答2:

x=25600
y=13600