46.5-x=27.4求解方程并验算.
问题描述:
46.5-x=27.4求解方程并验算.
答
46.5-X=27.4
46.5-X+X=27.4+X
27.4+X=46.5
X=46.5-27.4
X=19.1
验算:46.5-19.1=27.4