解方程:2.8x+7x=44.1
问题描述:
解方程:2.8x+7x=44.1
答
9.8X=44.1
X=44.1÷9.8
X=4.5
解方程:2.8x+7x=44.1
9.8X=44.1
X=44.1÷9.8
X=4.5