当x的值是_时,5x+0.2=0.4;当m的值是_时,2m=m2.
问题描述:
当x的值是______时,5x+0.2=0.4;当m的值是______时,2m=m2.
答
(1)5x+0.2=0.4 5x+0.2-0.2=0.4-0.2 5x=0.2 5x÷5=0.2÷5 &nb...
当x的值是______时,5x+0.2=0.4;当m的值是______时,2m=m2.
(1)5x+0.2=0.4 5x+0.2-0.2=0.4-0.2 5x=0.2 5x÷5=0.2÷5 &nb...