求未知数x 4(x+2)-6=10 2x-1.7+2.3=7.4 4.5:2=x:44
1个回答
4(x+2)-6=10 4x+8-6=10 4x=8 x=2
2x-1.7+2.3=7.4 2x=6.8 x=3.4
4.5:2=x:44 2x=44*4.5 x=99
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