,四道x-0.52x=3.2×0.15 4x-2x=3×18 9.5x-3x=5.6+7.4 1.36=0.35x+0.5x

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,四道x-0.52x=3.2×0.15 4x-2x=3×18 9.5x-3x=5.6+7.4 1.36=0.35x+0.5x

,四道x-0.52x=3.2×0.15 4x-2x=3×18 9.5x-3x=5.6+7.4 1.36=0.35x+0.5x
,四道
x-0.52x=3.2×0.15 4x-2x=3×18 9.5x-3x=5.6+7.4 1.36=0.35x+0.5x

,四道x-0.52x=3.2×0.15 4x-2x=3×18 9.5x-3x=5.6+7.4 1.36=0.35x+0.5x
0.48x=0.48 x=1
2x=54 x=27
6.5x=13 x=2
0.85x=1.36 x=1.6

① 0.48X=0.48 ② 2X= 54
X=1 X=27
③ 6.5X=13 ④ 1.36=0.85X
X=2 X=1.6

x-0.52x=3.2×0.15 4x-2x=3×18
x-0.52x=0.48 2x=54
0.48x=0.48 x=27
x=1

9.5x-3x=5.6+7.4 1.36=0.35x+0.5x
1.36=0.85x
6.5x=13 x=1.6
x=2

4356

X=1,X=27,X=2,X=1.6

1题是X=1 2题是X=27

① x-0.52x =3.2×0.15
解 0.48x =0.48
x =0.48除以0.48
x =1

② 4x-2x =3×18
解 2x =54
...

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① x-0.52x =3.2×0.15
解 0.48x =0.48
x =0.48除以0.48
x =1

② 4x-2x =3×18
解 2x =54
x =54除以2
x =27
③ 9.5x-3x =5.6+7.4
6.5x =13
x =13除以6.5
x =2
④ 1.36 =0.35x+0.5x
解0.85x =1.36
x =1.36除以0.85
x =1.6

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