\(\dfrac{3}{4}x+\dfrac{1}{2}\left(x+2\right)=-\dfrac{11}{4}\)
\(\dfrac{3}{4}x+\dfrac{1}{2}x+1=-\dfrac{11}{4}\)
\(\dfrac{5}{4}x=-\dfrac{11}{4}-1\)
\(\dfrac{5}{4}x=-\dfrac{15}{4}\)
\(x=-\dfrac{15}{4}:\dfrac{5}{4}\)
\(x=-3\)
Timf `x`:
`(x - 2)/3 = (x + 1)/4`
`(x - 2) . 4 = (x + 1) . 3`
`<=> 4x - 8 = 3x + 3`
`<=> 4x - 3x = 3 + 8`
`<=> (4 - 3)x = 11`
`=> x = 11`
3/4x + 1/2(x+1)=-11/4
0,75x - x + 1 và 1/4x = 20%Tìm x 5/11-3x=2/3x-2;x-11/x-3=2/3;-4x-3/4=1-3x/3 giải giúp em nha
3/4x+1/2(x+1)=-11/4
Bài 1:
a)-2x-3.( x-17 )= 34-2.( -x+25 )
b)17x+3.( -16x-37 )= 2x+43-4x
c){-3x+2. [ 45-x-3 ( 3x+7 ) -2x]+4x} = 55
g)-103-57: [ 5.( 2x-1 )2-( -9 )0 ]
Bài 2:
a)-5.( -x+7 )-3.( -x-5 )=-4.( 12-x )+48
b)7.( -x-7 )-4.( -2x-11 )=7.( 4x+10 )+9
c)-2.( 15-3x )-4.( -7x+8 )=-5-9.( -2x+1 )
d)5.( -3x-7 )-4.( -2x-11 )=7.( 4x+10 )+9
e)4( x-2 )2-13=( -3 )2.2-11.( -3 )
f)-52-( 2x-1 )3=( -13 ).( -3 )
`1/4x+3/8(x−2)=−11/4`
2/3 +(4/5 x -11/15) = 5/9
(3/4 -3x) nhân (1+4x) =0
1.tìm x
a) 4.(2x + 7) - 3.(3x - 2) = 24
b) 2.(x - 1) + 3.(x - 2) = x - 4
c) [124 - (20 - 4x)] : 30 + 7 = 11
1 Tìm x
a.11/12 - ( 2/5 +x ) = 2/3
b. 3/4 + 1/4 : x = 2/5
c. ( 3/2 - x) - 1/ -3 = 3/4
d. 3/4x - 1/2 = 5/3 + 1/2 x
Chú ý : Đây là phân số
Giúp mình với nhé!
3/2.(x-1/2)-3/4=1/2x-1
5/2.(x-3/4)-1/2=1-2x
9/2-3(1/2x-1)-4=1/2x-2
5-3/4.(x-1/3)-4(x-2)=1-11/2
4/5.17-x-3/2x=13/4x
Mình cảm ơn!
