www.5129.net > 5.4/x = 0.6/19 解方程

5.4/x = 0.6/19 解方程

5.4*19=0.6x,解得x=171

X0.6=5.4 解:X=5.4*0.6 X=3.24

[(x+0.6)+x]*9=(10+3)*(x+0.6)+3x(2X+0.6)*9=13X+7.8+3X=16X+7.818X+5.4=16X+7.818X-16X=7.8-5.4=2.42X=2.4X=1.2

-X=-0.6,X=0.6

①5.4+x=9.2, 5.4+x-5.4=9.2-5.4, x=3.8;②x-3.2=3.2,x-3.2+3.2=3.2+3.2, x=6.4;③1.2x=2.88,1.2x÷1.2=2.88÷1.2, x=2.4;④x÷0.5=4,x÷0.5*0.5=4*0.5, x=2.

解:6-X=5.4 6-5.4=X 0.6=X X=0.6 所以,该方程的解为:X=0.6

1.2x-x=0.60.2x=0.60.2x÷0.2=0.6÷0.2x=3

x-0.1x=0.63 解: 0.9x=0.63 x=0.7 (2x/8)+(3x/6)=6 解: (1/4)x+(1/2)x=6 (1/4)x+(2/4)x=6 (3/4)x=6 x=8 8.8-5(x-0.2)=3.8 解: 8.8-5x+1=3.8 9.8-5x=3.8 5x=6 x=6/5

x减七点九加五点四等于十二x-7.9+5.4=12x=12+7.9-5.4x=14.5

3X-4*0.6=5.43X=5.4+2.4=7.8X=7.8/3=2.6

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