Question

小学五年级上册的解方程题 ，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

Answer 1

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

Answer 2

0.48x=0.48 x=1
2x=54 x=27
6.5x=13 x=2
0.85x=1.36 x=1.6

Answer 3

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

Answer 4

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

Answer 5

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