60x-300=50x+400

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60x-300=50x+40060x-300=50x+40060x-300=50x+40060x-300=50x+40060x-50x=400+30010x=700x=70望采纳!x=70x=7060

60x-300=50x+400
60x-300=50x+400

60x-300=50x+400
60x-300=50x+400
60x-50x=400+300
10x=700
x=70
望采纳!

x=70

x=70

60x-50x=400+300 x=70

X=70.....