18x-7x=2x-9 解方程
问题描述:
18x-7x=2x-9 解方程
答
18x-7x=2x-9
11x=2x-9
9x=-9
x=-1 18x-7x=2x-9
11x=2x-9
9x=-9
x=-1
答
18x-7x=2x-9
11x=2x-9
9x=-9
x=-1
答
18x-7x=2x-9
18x-7x-2x=-9
9x=-9
x=-1