1/4x+5+1/2【x-(1/4x+5)】-5+40=x
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1/4x+5+1/2【x-(1/4x+5)】-5+40=x
1/4x+5+1/2【x-(1/4x+5)】-5+40=x
1/4x+5+1/2【x-(1/4x+5)】-5+40=x
1/4x+5+1/2【x-(1/4x+5)】-5+40=x
整理:
1/4x+1/2x-1/8x-5/2+40=x
去分母
2x+4x-x-20+320=8x
3x=300
x=100
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