2X+(2+X)*1+5*[50-x-(x+2)]=116怎么解

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2X+(2+X)*1+5*[50-x-(x+2)]=116怎么解
2X+(2+X)*1+5*[50-x-(x+2)]=116怎么解

2X+(2+X)*1+5*[50-x-(x+2)]=116怎么解
2x+(2+x)*1+5*[50-x-(x+2)]=116
2x+2+x+5(50-x-x-2)=116
2x+2+x+250-5x-5x-10=116
2x+x-5x-5x=116-2-250+10
-7x=-126
x=18

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