4-2.8=7.2怎么解

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4-2.8=7.2怎么解4-2.8=7.2怎么解4-2.8=7.2怎么解x÷6.4-2.8=7.2x÷6.4=7.2-2.8x÷6.4=4.4x=4.4×6.4x=28.26A:x/6.4=7.2+2

4-2.8=7.2怎么解
4-2.8=7.2怎么解

4-2.8=7.2怎么解
x÷6.4-2.8=7.2
x÷6.4=7.2-2.8
x÷6.4=4.4
x=4.4×6.4
x=28.26

A:
x/6.4=7.2+2.8
x=64
B:
(6.4-2.8)*7.2=25.92

25.92

X/6.4=10
X=64

1

X/6.4-2.8=7.2
X/6.4=7.2+2.8
X/6.4=10
X=10*6.4
X=10

x÷6.4-2.8=7.2
x÷6.4=7.2+2.8 x÷6.4=10 ...

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x÷6.4-2.8=7.2
x÷6.4=7.2+2.8 x÷6.4=10 x=10×6.4 x=64

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