5xx+1+5x=150
=>5x(xx+1)=150
=>xx+1=30/x
=>xx=x+30/x
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5xx+1+5x=150
=>5x(xx+1)=150
=>xx+1=30/x
=>xx=x+30/x
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-6x(1-X)+5x(2-5xX)=42
Tìm x,biết:2/5:3/5xX+4/7=1/3+4/7
f/ 11x(X+2) = 5xX + 40
g/ 11x(X-6) = 4xX + 11
h/ (3xX - 4) : X + 10 = 12
k/ (5xX + 7) : X + 20 = 26
m/ Xx1999 - X = 1999x1997+1999
f/ 11x(X+2) = 5xX + 40
g/ 11x(X-6) = 4xX + 11
h/ (3xX - 4) : X + 10 = 12
k/ (5xX + 7) : X + 20 = 26
m/ Xx1999 - X = 1999x1997+1999
Tìm X: (5xX/2 - 3) :15 =3/10
Tìm x
12(x – 1) = 0
45 + 5(x – 3) = 70
3.x – 18 : 2 = 12
5x + 2x = 62 - 50
5x + x = 150 : 2 + 3
5x+1+5x=150