x+1/2=2/3 x-2/9=2/3 1/4+x=5/6 5/6=4/9 x÷3/8=5/6 2+1/4=5 解方程还有检验
问题描述：
x+1/2=2/3 x-2/9=2/3 1/4+x=5/6 5/6=4/9 x÷3/8=5/6 2+1/4=5 解方程还有检验
答
x+1/2=2/3 x=2/3-1/2x=4/6-3/6x=1/6x-2/9=2/3 x=2/3+2/9x=6/9+2/9x=8/91/4+x=5/6 x=5/6-1/4x=20/24-6/24x=14/24x=7/125/6x=4/9 x=4/9×6/5x=8/15x÷3/8=5/6 x=5/6×3/8x=5/162x+1/4=52x=5-1/42x=19/4x=19/8检验没有时间