(1)4又1/5x-2x=4.4 (2)5x+3=10(1-1/2x)

问题描述:

(1)4又1/5x-2x=4.4 (2)5x+3=10(1-1/2x)
快回复

(1)4又1/5x-2x=4.4
4.2x-2x=4.4
2.2x=4.4
x=2
(2)5x+3=10(1-1/2x)
5x+3=10-5x
5x+5x=10-3
10x=7
x=0.7
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