ONE QUESTION, ONE STEP
ZX-269251E2C62026年9月国际A卷 · 第 14 题
2026年9月国际A卷 · 原库模块 2 · Q14 参考答案
\( 8x+7y=5 \)
The given equation is one equation in a system of two linear equations. If the system of equations has at least one solution, which of the following equations could be the other equation in the system?
I. \( 12x+10.5y=7.5 \)
II. \( 12x-10.5y=7.5 \)
The given equation is one equation in a system of two linear equations. If the system of equations has at least one solution, which of the following equations could be the other equation in the system?
I. \( 12x+10.5y=7.5 \)
II. \( 12x-10.5y=7.5 \)
参考答案：
解题思路
容易忽略的一步
