18x - 19 = 21+8x
g)18- 4x = -20-6x
h)-15x - 24 = - 7x +32
i) 15x- 3(4x - 6) = - 12+ 36
k) -10 x - 27 = - 7x +33
m) -17 x - 24 = - 9x - 40
n) -23x + 25 = - 18x +75
p) - 5x+ 7( 2x-3) = 4( x - 4)
q)24- 6(3x + 1) = -5( 4x- 4 ) - 8
r) 18-4. (6-2x) = -3.(4x +5 ) - 11
s) - 5. ( 4x-5) - 14 = 6.(2 - 3x) - 10x-9
giúp mik với giải cả cách làm nhé
18x -19 = 21 + 8x
18 x - 8x = 21 + 19
10 x = 40
x =4
g) 18 -4x=-20-6x
-4x + 6x = -20 - 18
2x = -38
x= -19
k, -10 \(x\) - 27 = -7\(x\) + 33
-27 - 33 = -7\(x\) + 10\(x\)
3\(x\) = -60
\(x\) - 20
m, -17\(x\) - 24 = -9\(x\) - 40
-24 + 40 = -9\(x\) + 17\(x\)
8\(x\) = 16
\(x\) = 2
h)-15x -24 = 7x + 32
-15x - 7x = 32 + 24
-22x = 56
x = \(-\dfrac{14}{5}\)
i)15x -3(4x -6)=-12+36
15x - 12x + 18 = 24
3x + 18 = 24
3x = 24 - 18
3x = 6
x=2
n, -23\(x\) + 25 = -18\(x\) + 75
-18\(x\) + 23\(x\) = 75 - 25
5\(x\) = 50
\(x\) = 10
q, 24 - 6.(3\(x\) + 1) = -5.( 4\(x\) - 4) - 8
24 - 18\(x\) - 6 = -20\(x\) + 20 - 8
-18\(x\) + 20\(x\) = 20 - 8 - 24 + 6
2\(x\) = -6
\(x\) = - 3
p, -5\(x\) + 7.(2\(x\) - 3) = 4.(\(x\) - 4)
-5\(x\) + 14\(x\) - 21 = 4\(x\) - 16
9\(x\) - 4\(x\) = -16 + 21
5\(x\) = 5
\(x=1\)
r, 18 - 4.( 6 - 2\(x\)) = - 3.(4\(x\) + 5) - 11
18 - 24 + 8\(x\) = - 12\(x\) - 15 - 11
8\(x\) + 12\(x\) = - 15 - 11 + 24 - 18
20 \(x\) = - 20
\(x\) = - 1
-5 . (4x -5) - 14 = 6.(2-3x) - 10x - 9
-20x + 25 -14 = 12 +18x - 10x -9
11 -12 +9 = 8x +20x
28x = 8
x = 2/7