5 x+4x-8=6.
问题描述:
5 x+4x-8=6.
答
5 x+4x-8=6.4
9X-8=6.4
9X=6.4+8
9X=14.4
X=1.6
5 x+4x-8=6.
5 x+4x-8=6.4
9X-8=6.4
9X=6.4+8
9X=14.4
X=1.6