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The second question on page 5 1 of the fourth grade math summer homework in Hubei Province expresses the quantitative relationship with equations.
46+x= 102

x- 10=46

x-46= 10

4a=32

Answer? =64

a-b=5

2(a+b)=50

ab= 150

0.0 1

306

2x-26 3x-26

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