Tìm X biết
K) 2 x + 1/2 = 0
L) 3,5 – 3 x = 6,5
M) 4 x – 2 = 1/2
N) 2,5 – 3x = -3,5
O) 2 x : 3/5 = 5/9
P) 4 : 2 x = 2
Q) ( x + 1 ) – 1/2 = 1/3
U) 4 – (1/2 – x ) = 5
Cần Gấp 20P Nữa Nộp Rồi Ạ
Tìm X biết
K) 2 x + 1/2 = 0
L) 3,5 – 3 x = 6,5
M) 4 x – 2 = 1/2
N) 2,5 – 3x = -3,5
O) 2 x : 3/5 = 5/9
P) 4 : 2 x = 2
Q) ( x + 1 ) – 1/2 = 1/3
U) 4 – (1/2 – x ) = 5
Cần Gấp 20P Nữa Nộp Rồi Ạ
K) 2 x + 1/2 = 0
2x = 0 – 1/2
2x = -1/2
x = -1/2 x 1/2
x = -1/4
L) 3,5 – 3 x = 6,5
3x = 3,5 – 6,5
3x = -3
x = -3 / 3
x = -1
M) 4 x – 2 = 1/2
4x = 1/2 + 2
4x = 1/2 + 4/2
4x = 5/2
x = 5/2 x 1/4
x = 5/8
N) 2,5 – 3x = -3,5
3x = 2,5 + 3,5
3x = 6
x = 6 / 3 = 2
O) 2 x : 3/5 = 5/9
2x = 5/9 x 3/5
2x = 1/3
x = 1/3 x 1/2
x = 1/6
P) 4 : 2 x = 2
2x = 4/2
2x = 2
x = 1
Q) ( x + 1 ) – 1/2 = 1/3
x + 1 = 1/3 + 1/2
x + 1 = 2/6 + 3/6
x + 1 = 5/6
x = 5/6 – 6/6
x = -1/6
U) 4 – (1/2 – x ) = 5
1/2 – x = 4 – 5
1/2 – x = – 1
x = 1/ 2 – 1
x = 1/2 – 2/2
x = -1/2
`k, 2x+1/2=0`
`2x=0-1/2`
`2x=-1/2`
`x=-1/2:2`
`x=-1/4`
`l, 3,5-3x=6,5`
`3x=3,5-6,5`
`3x=-3`
`x=-3:3`
`x=-1`
`m, 4x-2=1/2`
`4x=1/2+2`
`4x=5/2`
`x=5/2:4`
`x=5/8`
`n, 2,5-3x=-3,5`
`3x=2,5–3,5`
`3x=6`
`x=6:3`
`x=2`
`o, 2x:3/5=5/9`
`2x=5/9. 3/5`
`2x=1/3`
`x=1/3:2`
`x=1/6`
`p, 4:2x=2`
`2x=4:2`
`2x=2`
`x=2:2`
`x=1`
`q, (x+1)-1/2=1/3`
`x+1=1/3+1/2`
`x+1=5/6`
`x=5/6-1`
`x=-1/6`
`u, 4-(1/2-x)=5`
`1/2-x=4-5`
`1/2-x=-1`
`x=1/2–1`
`x=3/2`