Rozwiąż.
a) -19+x=20
b) 8x=3
c)8¾x=-2
d) -0,6x=9
e)3x-4=11
f)4½+x=11
g)-1,2-2x=-⅓
h) 25x=3
i) 4x=2⅓
a) 19+x=20
x=1
b) 8x=3 /:8
x=3/8
c) 8 3/4x=-2
8,75x=-2 /:8,75
x= -0,23
d) -0,6x=9 /:(-0,6)
x=-15
e) 3x-4=11
3x=15 /:3
x=5
f) 4 1/2+x=11
x=6 1/2
g) -1,2 - 2x= 1/3
-1 1/5 - 2x = 1/3
-6/5 - 2x = 1/3
-18/15 - 2x = 5/15
2x = -18/15 - 5/15
2x = -23/15 /:2
x = - 23/15 * 1/2
x = - 23/30
h) 25x = 3 /:25
x = 3/1 * 1/25
x = 3/25
i) 4x = 2 1/3
x = 7/3 : 4/1
x = 7/3 * 1/4
x = 7/12
x=20+19
x=39
x =
c) 8 x = -2
x = -2 / :
x = -
d) -0,6x = 9 / : (-0,6)
x= -15
e) 3x - 4 = 11
3x = 11+ 4
3x = 15 / :3
x = 5
f) 4 + x = 11
x =11-4
x = 6
g) -1,2 - 2x = -
-2x = - + 1,2
-2x = / : (-2)
h) 25x = 3 / :25
i) 4x = 2 / : 4
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a) 19+x=20
x=1
b) 8x=3 /:8
x=3/8
c) 8 3/4x=-2
8,75x=-2 /:8,75
x= -0,23
d) -0,6x=9 /:(-0,6)
x=-15
e) 3x-4=11
3x=15 /:3
x=5
f) 4 1/2+x=11
x=6 1/2
g) -1,2 - 2x= 1/3
-1 1/5 - 2x = 1/3
-6/5 - 2x = 1/3
-18/15 - 2x = 5/15
2x = -18/15 - 5/15
2x = -23/15 /:2
x = - 23/15 * 1/2
x = - 23/30
h) 25x = 3 /:25
x = 3/1 * 1/25
x = 3/25
i) 4x = 2 1/3
x = 7/3 : 4/1
x = 7/3 * 1/4
x = 7/12
a) -19+x=20
x=20+19
x=39
b) 8x=3 /:8
x =
c) 8 x = -2
x = -2 / :
x = -
d) -0,6x = 9 / : (-0,6)
x= -15
e) 3x - 4 = 11
3x = 11+ 4
3x = 15 / :3
x = 5
f) 4 + x = 11
x =11-4
x = 6
g) -1,2 - 2x = -
-2x = - + 1,2
-2x = / : (-2)
x = -
h) 25x = 3 / :25
x =
i) 4x = 2 / : 4
x =