ONE QUESTION, ONE STEP
ZX-1A786001ECPSAT10 P1 · 第 20 题
PSAT10 P1 · 原库模块 1 · Q20 原库参考解析
x +3=-2y +5
x -3 =2y +7
The solution to the given system of equations is (x,y). What is the value of 2x?
参考答案：
解题思路
容易忽略的一步
x -3 =2y +7
The solution to the given system of equations is (x,y). What is the value of 2x?
