Question

解方程 5(x+3)=20

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Answer 1

5(x+3)=20

两边除以5

x+3=4

移项

x=4-3

x=1

Answer 2

5(x+3)=20
x+3=4
x=1

Answer 3

x+3=20/5
x+3=4
x=4-1
x=3

Answer 4

x=1

Answer 5

x=1