ONE QUESTION, ONE STEP
ZX-E9FCB3148A机考OG2 · 第 21 题
机考OG2 · 原库模块 2 · Q21 原库参考解析
y = 4x + 1
4y = 15x − 8
The solution to the given system of equations is (x , y). What is the value of x − y ?
参考答案：
解题思路
容易忽略的一步
4y = 15x − 8
The solution to the given system of equations is (x , y). What is the value of x − y ?
