a) 3x-1 = x-2
x = -1/2
b) 3x-1 = -x+2
x = 3/4
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tim x biet
|x+1|+|3x+2|=3x
|x-2|+4|x+1|=x-3
tim x biet /x^2+/3x-1//=x^2+7
tim x biet /3x-2/-x>1
help: tim x biet: | x+1| +|2x-3|=|3x-2|
tim x biet -3x/4.(1/x+2/7)=0
tim x biet:
a./3x-2/=x
b. /x-2/=2x+1
Tim x biet: (3/4x+5)-(2/3x-4)-(1/6x+1)=(1/3+4)-(1/3x-3)
Tim x biet:
(3/4x + 5) - (2/3x - 4) - (1/6x + 1) = (1/3x + 4) - (1/3x - 3)
tim x biet 3x*(x+1)-x*(3x+2)=6