x+y=94 8x+10y=834
问题描述:
x+y=94 8x+10y=834
答
x+y=94 ①
8x+10y=834 ②
将①化简,得:y=94-x ③
将③代入②,得:
8x+10(94-x)=834
8x+940-10x=834
-2x=-106
x=53
∴y=94-x=94-53=41