来自刘宇蕾的问题
解方程5x-0.4/0.3+1.3-3x/2=1.8-8x/25x-0.4/0.3+1.3-3x/2=1.8-8x/2
解方程5x-0.4/0.3+1.3-3x/2=1.8-8x/2
5x-0.4/0.3+1.3-3x/2=1.8-8x/2
1回答
2020-05-14 19:07
解方程5x-0.4/0.3+1.3-3x/2=1.8-8x/25x-0.4/0.3+1.3-3x/2=1.8-8x/2
解方程5x-0.4/0.3+1.3-3x/2=1.8-8x/2
5x-0.4/0.3+1.3-3x/2=1.8-8x/2
5x-0.4/0.3+1.3-3x/2=1.8-8x/2
5x-4/3+13/10-3x/2=9/5-4x(移项)
5x+4x-3x/2=9/5+4/3-13/10
15x/2=11/6
15x=11/6*2
15x=11/3
x=11/3*1/15
x=11/45