解:2.4x-35=x+35
2.4x-x=35+35
(2.4-1)x=70
1.4x=70
x=70÷1.4
=50
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2.4x-35-x=35
1.4x=35+35
1.4x=70
x=50
2.4X-X=35+35
1.4X=70
X=50
2.4x-x=35+35
1.4x=70
x=50
移向 2.4x-x=35+35
1.4x=70
x=50