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解方程很难···2800-三分之一X-(2800-X)四分之一=2000······························································

题目详情
解方程很难···
2800-三分之一X-(2800-X)四分之一=2000······························································
▼优质解答
答案和解析
2800-1/3x-700+1/4x=2000
2100-1/12x=2000
x=1200