Matemmatyka z plusem klasa 1 zadanie 9 strona 177/
d) x/6-1/6= 1
e) -2(2x-1)= x/3
f)2/5(3-x)= -2
g) 3/4(2-3x)= -6
h) 1/5(x-3)= 9-x
i) 0,6+x/2= x+1
Jakby co to znak " / " zastępuje kreskę ułamkową.
Z góry wielkie dzięki. : )
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
d)
x/6-1/6= 1 / * 6
x - 1 =1
x = 2
e)
-2(2x-1)= x/3
-4x+2 = x/3 / *3
-12x +6 =x
6 = 13 x / /13
6/13 = x
f)
2/5(3-x)= -2
6/5 - 2/5x = -2 / *5
6 - 2x = - 10
- 2 x = -16
x = 8
h)
1/5(x-3)= 9-x
1/5x - 3/5 = 9 - x / *5
x - 3 = 45 - 5x
6x = 48
x = 8
i)
0,6+x/2= x+1/ *2
1,2 + x = 2x +1
0,2 = x
d) x=5
e) x= 6/13
f)x=8
g)x=30/9
h)x=8
i)x=-4/5
d)
x/6-1/6=1 /*6
x-1=6 --> x=5
e)
-2(2x-1)=x/3 /*3
-6(2X-1)=X
-12X+6=X
6=13X--->x = 13/6
f)
2/5(3-x)=-2 /*5
2(3-x)=-10
6-2x=-10
-2x=-16 ----> x=8
g)
3/4(2-3x)= -6 /*4
3(2-3x)=-24
6-9x=-24
-9x=-30---> x=30/9
h)
1/5(x-3)= 9-x /*5
x-3=45-5x
6x=48 ---> x=8
i)
0,6+x/2= x+1 /*2
1,2+x=2x+2
-0,8=x
te wyniki sa na 100% dobre :)