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热心网友 时间:2024-10-20 20:54
(1)0.86x-0.3x=11.2 0.56x=11.2 0.56x÷0.56=11.2÷0.56 ...
60*0.4+6x=63.6 24+6x=63.6 6x=39.6 x=6.6
30x=63.6 x=2.12
(1)60×0.4+6x=63.6, 24+6x=63.6, 24+6x-24=63.6-24, 6x=39.6, 6x÷6=39.6÷6, x=6.6;(2)2(x-0.68x)=0.96, 2(x-0.68x)÷2=0.96÷2, x-0.68x=0.48, 0.32x=0.48, 0.32x÷0.32=0.48÷0.32, x=1.5.
(x-4.5)×6=63.6 x-4.5=63.6÷6 x-4.5=10.6 x=10.6-4.5 x=6.1
(1)0.7x+0.3x=8.8 (0.7+0.3)x=8.8 x=8.8;(2)6x-3×1.2=6 6x-3.6=6 6x-3.6+3.6=6+3.6 6x=9.6 6x÷6=9.6÷6 x=1.6;(3)0.3x+3×1.3=6 0.3x+3.9=6 0.3x+3.9-3.9=6-3.9 0.3x=2.1 0.3x÷0.3=2...
6x+24=63.6=6x++24-24=63.6-24=37.6=2x=37.6=2x除以2=37.6除以2
回答:21.2X=63.3 X=3
24X+6x=30x x=63.6/30 x=2.12
13.2x+8x=63.6 (13.2+8)x=63.6 21.2x=63.6 x=63.6÷21.2 x=3