解方程:(1)(1-4/9)X=3/5 (2)2X÷10/11=4/15

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解方程:(1)(1-4/9)X=3/5 (2)2X÷10/11=4/15
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解方程:(1)(1-4/9)X=3/5 (2)2X÷10/11=4/15
解方程:(1)(1-4/9)X=3/5 (2)2X÷10/11=4/15

解方程:(1)(1-4/9)X=3/5 (2)2X÷10/11=4/15
(1)(1-4/9)X=3/5
(5/9)x=3/5;
x=(3/5)×(9/5);
x=27/25;
2)2X÷10/11=4/15
2x=(4/15)×(10/11);
2x=8/33;
x=4/33;
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(1)(1-4/9)X=3/5
(9/9 - 4/9)x = 3/5
5/9 x = 3/5
x = 3/5 × 9/5
x = 27/25
(2)2X÷10/11=4/15
2 x = 4/15 × 10/15
2 x = 40/225
x = 20/225
x = 4/45