1/5(X-8)+1/4x+(x-1)/4=6-(23-x)/5 两边同时乘以20
4（x-8)+5x+5(x-1)=120-4(23-x)
4x-32+5x+5x-5=120-92+4x
14x-4x=28+37
10x=65
x=6.5
1/5(X-8)+1/4x+(x-1)/4=6-(23-x)/5
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