当x=6时,求5x-2x+6.8的值
问题描述:
当x=6时,求5x-2x+6.8的值
答
5x-2x+6.8=3x+6.8=24.8
答
24.8
答
5x-2x+6.8
=3x+6.8
=3×6+6.8
=24.8
答
5x-2x+6.8
=3x+6.8
当x=6时
原式=3*6+6.8=24.8