(2x-4/5)乘3+0.1x=50-x

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(2x-4/5)乘3+0.1x=50-x(2x-4/5)乘3+0.1x=50-x(2x-4/5)乘3+0.1x=50-xx=7.38

(2x-4/5)乘3+0.1x=50-x
(2x-4/5)乘3+0.1x=50-x

(2x-4/5)乘3+0.1x=50-x
x=7.38