当x=3.2时,求5x+7x+2.7的值

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当x=3.2时,求5x+7x+2.7的值当x=3.2时,求5x+7x+2.7的值当x=3.2时,求5x+7x+2.7的值直接把x=3.2代入5x+7x+2.75×3.2+7×3.2+2.7=16+22

当x=3.2时,求5x+7x+2.7的值
当x=3.2时,求5x+7x+2.7的值

当x=3.2时,求5x+7x+2.7的值
直接把x=3.2代入5x+7x+2.7
5×3.2+7×3.2+2.7
=16+22.4+2.7
=41.1