题库搜索>问题求解PS-13676
If the sum of 5, 8, 12, and 15 is equal to the sum of 3, 4, x, and x + 3, what is the value of x ?
分析A选项
分析B选项
分析C选项
分析D选项
分析E选项
5+8+12+15=3+4+x+x+3
x=15
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