1+0.5 x = 30

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1+0.5 x = 30
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1+0.5 x = 30
1+0.5 x = 30

1+0.5 x = 30
1+0.5x=30
0.5x=29
x=58
答题不易,望采纳,谢谢

1+0.5 x = 30
0.5 x = 30-1
0.5 x = 29
x=29÷0.5
x=58

1+0.5x=30
0.5x=30-1
0.5x=29
x=58

0.5x=30-1
0.5x=29
x=29÷0.5
x=58