移项6/5[5/6(2x+1)+5]=4x-1
5/6(2x+1)+5=(4x+1)*5/6
5x/3+5/6+5=10x/3+5/6
5=10x/3-5x/3+5/6-5/6=5x/3
解之得x=3
6/5[5/6(2x+1)+5]-1=4x
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