2x-1.25=2.75-2x
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答案1,x=1,解:2x-1.25=2.75-2x,2x-1.25+2x=2.75-2x+2x,4x-1.25=2.75,4x-1.25+1.25=2.75+1.25,4x=4,4x➗4=4➗4,x=1
咨询记录 · 回答于2023-01-15
2x-1.25=2.75-2x
讲解一下
答案1,x=1,解:2x-1.25=2.75-2x,2x-1.25+2x=2.75-2x+2x,4x-1.25=2.75,4x-1.25+1.25=2.75+1.25,4x=4,4x➗4=4➗4,x=1
答案1,x=1,解:2x-1.25=2.75-2x,2x-1.25+2x=2.75-2x+2x,4x-1.25=2.75,4x-1.25+1.25=2.75+1.25,4x=4,4x➗4=4➗4,x=1利用等式的性质解方程
详细过程请看截图