4.5×2/3+50%x=4.2.怎么解方程?
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4.5×2/3+50%x=4.2.x =-23/15
咨询记录 · 回答于2023-01-05
4.5×2/3+50%x=4.2.怎么解方程?
能快点儿吗?
4.5×2/3+50%x=4.2.x =-23/15
解题过程见上图
4.5×2/3+50%x=4.2.9/2×2/3+1/2x =21/53+1/2x =21/51/2x =21/5-31/2x =21/5-15/51/2x=6/5x=6/5÷1/2x=6/5×2x=12/5