/ x + 1 / + / x + 4 / = 3x
/ x- 1/ + / x + 4 / = 3x
tìm x
/x + 1 / + / x = 4 / = 3.x
/ x - 1 / - / x + 4 / = 3x
Tìm x:
a. 2x(x - 1) - x(4 - x) = 0
b. 3(1 - 4x)(x - 1) + 4(3x - 2)(x + 3) = -27
-3x/4.(3/x+5/7)=0
x+1/2-1/3=1/4
tìm x biết rằng:
a, |3x-5|+3x=x+4
b, 2|.1-x| -x+1=-3x
c, |x+2|-2=x
GIÚP MIK NHA!
Tìm x biết:
1. 9/4:(1/3x-1/2)=4 và 1/2
2. 1/2015.x=(1-1/2) (1-1/3) (1-1/4)...(1-1/2014) (1-1/2015)
tìm x
a)-5.(-x+7)-3.(-x-5)=-4.(12-x)+48
b) (-x-7)-5.(-x-3)=12.(3-x)
c)-2.(15-3x)-4.(7x+8)=-5-9.(-2x+1)
d) (-3x-7) - 4.(-2x-11)=7.(4x+10)+9
tìm x biết
bài 3.3
a,/4+2x/=-4x
b,/3x-1/+2=x
c,/x+15/+1=3x
d,/2x-5/+x=2
2x-3=3x+1
x+(-2)=3-x
3-2x=4-x
