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  3. If m-p=4, and n+p=18, then m+n =A、14B、18C、22D、26E、30CThe correct answer is

If m-p=4, and n+p=18, then m+n =A、14B、18C、22D、26E、30CThe correct answer is

游客2024-01-12  40
问题 If m-p=4, and n+p=18, then m+n =
选项 A、14
B、18
C、22
D、26
E、30
答案 C
解析 The correct answer is C. You are given the values of m-p and n+p. If you note that(m-p)+(n+p)=m-p+n+p, which equals m+n, then this value must be 4 + 18, which is 22.
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