1.2(x+1)=4.8x+1=4.8÷1.2x+1=4x=4-1x=3
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x>=1时,方程化为:x-1+x+2=4, 得:x=3/2-2x<=-2时,方程化为:1-x-x-2=4, 得:x=-5/2综合得方程的解为x=3/2或-5/2