方程:1.7x+0.5x=4.
问题描述:
方程:1.7x+0.5x=4.
答
1.7x+0.5x=4.4
2.2x=4.4
x=4.4/2.2
x=2
方程:1.7x+0.5x=4.
1.7x+0.5x=4.4
2.2x=4.4
x=4.4/2.2
x=2