1.8(4.2-3×)等于0.972
1个回答
关注
展开全部
答案1.22,解:1.8(4.2-3x)➗1.8=0.972➗1.8,4.2-3x=0.54,4.2-3x+3x=0.54+3x,4.2=0.54+3x,4.2-0.54=3x-0.54,3.66=3x,3x=3.66,3x➗3=3.66➗3、x=1.23
咨询记录 · 回答于2022-12-06
1.8(4.2-3×)等于0.972
还没有好吗
答案1.22,解:1.8(4.2-3x)➗1.8=0.972➗1.8,4.2-3x=0.54,4.2-3x+3x=0.54+3x,4.2=0.54+3x,4.2-0.54=3x-0.54,3.66=3x,3x=3.66,3x➗3=3.66➗3、x=1.23
答案1.22,x=1.22解:1.8(4.2-3x)➗1.8=0.972➗1.8,4.2-3x=0.54,4.2-3x+3x=0.54+3x,4.2=0.54+3x,4.2-0.54=3x-0.54,3.66=3x,3x=3.66,3x➗3=3.66➗3,x=1.22
答案1.22,x=1.22解:1.8(4.2-3x)➗1.8=0.972➗1.8,4.2-3x=0.54,4.2-3x+3x=0.54+3x,4.2=0.54+3x,4.2-0.54=3x-0.54,3.66=3x,3x=3.66,3x➗3=3.66➗3,x=1.22