I x-3 = 2x+4
=> x-3 =2x+4 hoặc x-3= - (2x+4)
2x-x=4+3
x=7
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tim x biet: ||x-1/2|.|2x-3/4||=2x-3/4
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Tim x biet
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Tim so nguyen x biet
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Tim x biet:
a,[3x-4]=x
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tim x biet
3x+4 chia het cho x-3
2x-1 chia het cho x+1