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

5x-2x+6.8=3x+6.8=24.8

24.8

5x-2x+6.8
=3x+6.8
=3×6+6.8
=24.8

5x-2x+6.8
=3x+6.8
当x=6时
原式=3*6+6.8=24.8