Rozwiąż równania
a) 1\3 x + 1=5
b)1\2 x +1 \5 x - 1\10 x = 2
c) 3x + 5 - 2x
d) x= -2x
e) 4- x = 1,3
f) - x- 3 = x-4
a) 1\3 x + 1=5 |*3
x + 3 = 15 | -3
x = 12
b) 1\2 x +1 \5 x - 1\10 x = 2 | * 10
5x + 2x - x = 20
6 x = 20
x = 20/6 = 10/3
c) 3x + 5 = 2x
x + 5 =0
x = -5
-3x = 0
x = 0
4 = 1.3 + x
x = 2.7
-x = x - 1
2x - 1 = 0
x = 1/2
a)
1/3x+1=5
1/3x=4
x=12
b)
1/2x+1/5x-1/10x=2 \*10
5x+2x-x=20
6x=20
x=20/6=10/3
c)
3x+5=2x
x=-5
d)
x=-2x
3x=0
x=0
e)
4-x=1,3
-x=-2,7
x=2,7
f)
-x-3=x-4
-x-x=-4+3
-2x=-1
x=1/2
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a) 1\3 x + 1=5 |*3
x + 3 = 15 | -3
x = 12
b) 1\2 x +1 \5 x - 1\10 x = 2 | * 10
5x + 2x - x = 20
6 x = 20
x = 20/6 = 10/3
c) 3x + 5 = 2x
x + 5 =0
x = -5
d) x= -2x
-3x = 0
x = 0
e) 4- x = 1,3
4 = 1.3 + x
x = 2.7
f) - x- 3 = x-4
-x = x - 1
2x - 1 = 0
x = 1/2
a)
1/3x+1=5
1/3x=4
x=12
b)
1/2x+1/5x-1/10x=2 \*10
5x+2x-x=20
6x=20
x=20/6=10/3
c)
3x+5=2x
x=-5
d)
x=-2x
3x=0
x=0
e)
4-x=1,3
-x=-2,7
x=2,7
f)
-x-3=x-4
-x-x=-4+3
-2x=-1
x=1/2