Question

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rozwiąż równania :
x+7=10
x-1=6
3x+6=9
5=3+7x
1/2x=11
4/9x=1/3
1/3x+1=5
3x+5=2x
x=-2x
4-x=1,3
-x-3=x-4
8,3-2x=0,5
1/2x=1/3x-1
1/2-x=-1/2x
1/2x+1/5x-1/10x=2








1/4 = ułamek zwykły jbc. ;p

Answer 1

A)x+7=10
x=10-7
x=3
b)x-1=6
x=6+1
x=7
c)3x+6=9
3x=9-6
3x=3/:3
x=1
d)5=3+7x
-7x=3-5
-7x=-2/:-7
x=2/7
e)1/2x=11/x2
x=22
f)4/9x=1/3/x9/4
x=3/4
g)1/3x+1=5
1/3x=5-1
1/3x=4/x3
x=12
h)3x+5=2x
3x-2x=-5
x=-5
i)x=-2x
x+2x=0
3x=0
x=0
j)4-x=1,3
-x=1,3-4
-x=-2,7/x-1
x=2,7
k)-x-3=x-4
-x-x=-4+3
-2x=-1/:-2
x=1/2
l)8,3-2x=0,5
-2x=0,5-8,3
-2x=-7,8/:-2
x=3,9
m)1/2x=1/3x-1
1/2x-1/3x=-1
3/6x-2/6x=-1
1/6x=-1/x6
x=-6
n)1/2-x=-1/2x
-x+1/2x=-1/2
1/2x=-1/2/x2
x=-1
o)1/2x+1/5x-1/10x=2
5/10x+2/10x-1/10x=2
6/10x=2x10/6
x=20/6
x=3 i 2/10

Answer 2

X+7=10 |-7
x=3

x-1=6 |+1
x=7

3x+6=9 |-6
3x=3 |:3
x=1

5=3+7x |-3
7x = 2 |:7
x=2/7

1/2x=11 |*2
x=22

4/9x=1/3 |*9
4x = 3 |:4
x=3/4

1/3x+1=5 |-1
1/3x = 4 |*3
x=12

3x+5=2x |-3x
-x=5 |*(-1)
x=5

x=-2x
x=0

4-x=1,3 |-4
-x = -2,7
x=2,7

-x-3=x-4 |+x
-3=2x-4 |+4
2x = 1 |:2
x=1/2

8,3-2x=0,5 |+2x
8,3 = 2x+0,5 |-0,5
2x = 7,8 |:2
x= 3,9

1/2x=1/3x-1 |-1/3x
1/6x = -1 |*6
x=-6

1/2-x=-1/2x |+x
1/2 = 1/2x |*2
x=1

1/2x+1/5x-1/10x=2
5/10x+2/10x-1/10x = 2
6/10x = 2
3/5x = 2 |*5/3
x=10/3

Answer 3

X=3
x=7
x=1
x=2/3
x=22
x=3/4
x=12
x=5
3x=0
x=2,7
x=3,9
x=-1
x=1
x=3 1/3