=>1/2x+2/3x=x+4
x(1/2+2/3)=x+4
x7/6=x+4
x7/6-x-4=0
x(7/6-1)-4=0
=>x1/6=4
=>x=24
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=>1/2x+2/3x=x+4
x(1/2+2/3)=x+4
x7/6=x+4
x7/6-x-4=0
x(7/6-1)-4=0
=>x1/6=4
=>x=24
tim x thuoc N biet
10 + 2 . x = 4 .4.4.4.4 : 4.4.4
231 - ( x -6) = 1339 : 13
1818 : ( 6x - 37 ) = 18
21 + ( 25 - x) =50
( x + 13) :5=2
( 2600+6400) - 3x=1200
bai 1 tim x biet
a)x-43+7=49-(50+3)
b)-(x-16)+70=45
bai2 tim x biet
a)2x-(-60)=3x-18
b)-45-5x=10-4x
tim x biet 45-3x+2.{3-x}=4
tim x biet -{x-3} +2.{3x+2}=x-4
la dau ngoac don
tim x biet /3x+1/+/4-x/=3
tim x biet:
a,10-2(4-3x)=-4
b,-12+3(-x+7)=-18
Tim x, biet:
23x+2= 4x+5
giup mik voi tim x biet
1, 5-(3x+6)>-2x+1
2, -7.(x+2)-3x<6-11x
3, (x+1).(x+2)-x.(x+3)<4-x
4, 6-2x>17+(4-x)
tim x biet : a,-12/21×x + 3/7=-4/3, b, 2x +-3^2=5/4 , c, 75% x- 2/5=3/10, d, (3x-2)×(x+7)