第1个回答 2023-06-14
2x/5-1/2=3/4
移项
2x/5=3/4+1/2
整理
2x/5=5/4
解得
x=5/4×5/2=25/8
第2个回答 2023-06-14
2/5x-1/2=3/4
2/5x=3/4+1/2
2/5x=5/4
x=25/8
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第3个回答 2023-06-13
2/5x-1/2=3/4
2/5x=3/4+1/2
2/5x=5/4
x=25/8
第4个回答 2023-06-14
2/5(x-1/2)=3/4
2x/5-1/5=3/4
2x/5=3/4+1/5
2x/5=19/20
x=19/8
第5个回答 2023-06-14
2/5×(X-1/2)=3/4
8×(X-1/2)=15
X-1/2=15/8
X=15/8+1/2
X=19/8