登入
Mathematics for IGCSE & O level - Equations (Section 2 - No. 3)
What value of x makes the following true: 2x + 1 = x - 3?
2
-4
4
-2
解释
Subtract x: x + 1 = -3. Subtract 1: x = -4.
评论 (0)
登录发表评论
广告
允许 javascript 正确加载此页面