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Legenda . ;
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zadanie . ;
a) . x / 3 - 5/6=1/12-x/2
b) 7/9+x/2=3/2-x/18
c) x/2-3/4 = 7/8+x/4
d) x/9+1/2=5/4-x/6+1/12
e) x/5-2/3+1 1/2 = x/10-3/5-2x/3
f) 1/20-3x/2+2 1/5 =x/4 - 7/5
g)3+8+x/2= 2x+13
h)2x-3x-7/4 =x+1
i) 5-x+5/3=2-x
j)3x+4-x/5=x-1
k)5(3-x)+x-3/2=4x+5
l)4(x-1)+2x-1/3=3x-1
m)2(5-x)-7-x/2=x-1
n)3(2x-7)-3x-4/4=5-x
o)5-x/2 -2(2x+5)=2x-1
p)x-1/3 +5(x+3)=2-x
r)2(2x+7)- x-2/5=9+2x
s) -2(3x+10)-x+8/4=3(x+5)
t)x-1/3-x-2/2=2x-5/6
w)2x-1/4-x-1/2=5x-9/4
u)x+6/2-5+x/3=2-x/6
a)x+4/4-2x-1/2=x+2/4
b)2x-3/6-8-x/9=x+3/18
c)x+3/3-2+x/4=3-2x/12
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a)
4x/12 - 10/12 = 1/12 - 6x/12 //*12
4x - 10 = 1 - 6x
4x + 6x = 10 + 1
10x = 11 //:10
x=1 1/2
b)
14/18 + 9x/18 = 27/18 - x/18 //*18
14 + 9x = 27 - x
10x = 27 - 14
10x = 13 //:10
x = 1,3
c)
4x/8 - 6/8 = 7/8 + 2x/8 //*8
4x - 6 = 7 + 2x
2x = 13 //:2
x = 6 1/2
d)
4x/36 + 18/36 = 45/36 - 6x/36 + 3/36 //*36
4x + 18 = 45 - 6x + 3
10x = 48 - 18
10x = 30 //:10
x = 3
e)
6x/30 - 20/30 + 45/30 = 3x/30 - 18/30 - 20x/30 //*30
6x - 20 + 45 = 3x - 18 - 20x
23x = - 25 - 18
23x = - 43 //:23
x = - 1 20/23
f)
1/20 - 30x/20 + 44/20 = 5x/20 - 28/20 //*20
1- 30x + 44 = 5x - 28
- 35x = - 28 - 45
- 35x = - 73 //:(-35)
x = 2 3/35
g)
3 + 8 + x/2 = 2x + 13 //*2
6 + 16 + x = 4x + 26
- 3x = 26 - 22
- 3x = 4 //:(-3)
x = - 1 1/3
h)
2x - 3x - 7/4 = x + 1 //*4
8x - 12x - 7 = 4x + 4
- 8x = 11 //:(-8)
x = - 1 3/8
i)
5 - x + 5/3 = 2 - x //*3
15 - 3x + 5 = 6 - 3x
14 = 0
równanie sprzeczne
j)
3x + 4 - x/5 = x - 1 //*5
15x + 20 - x = 5x - 5
9x = - 25 //:9
x = - 2 7/9
k)
15 - 5x + x - 3/2 = 4x + 5 //*2
30 - 10x + 2x - 3 = 8x + 10
- 16x = - 27 + 10
- 16x = - 17 //:(-16)
x = 1 1/16
l)
4x- 4 + 2x - 1/3 = 3x - 1 //*3
12x - 12 + 6x - 1 = 9x - 3
9x = 10 //:9
x = 1 1/9
m)
10 - 2x - 7 - x/2 = x - 1 //*2
20 - 4x - 14 - x = 2x - 2
- 7x = - 8 //:(-7)
x = 1 1/7
n)
6x - 21 - 3x - 4/4 = 5 - x //*4
24x - 84 - 12x - 4 = 20 - 4x
16x = 108 //:16
x = 6 3/4
o)
5 - x/2 - 4x - 10 = 2x - 1 //*2
10 - x - 8x - 20 = 4x - 2
- 13x = 8 //:(-13)
x = - 8/13
p)
x - 1/3 + 5x + 15 = 2 - x //*3
3x - 1 + 15x + 45 = 6 - 3x
21x = - 38 //:21
x = - 1 17/21
r)
4x + 14 - x - 2/5 = 9 + 2x //*5
20x + 70 - 5x - 2 = 45 + 10x
5x = -68 + 45
5x = - 23 //:5
x = - 4 3/5
s)
-6x - 20 - x + 2 = 3x + 15
- 10x = 33 //:(-10)
x = - 3,3
t)
x - 1/3 - x - 1 = 2x - 5/6 //*6
6x - 2 - 6x - 6 = 12x - 5
- 12x = 3 //:(-12)
x = - 1/4
w)
2x - 1/4 - x - 1/2 = 5x - 9/4 //*4
8x - 1 - 4x - 2 = 20x - 9
- 16x = - 6 //:(-16)
x = 3/8