rozwiąż równania(zadanie w linkach)
a) http://tinypic.com/view.php?pic=2ahf5md&s=6
b) http://tinypic.com/view.php?pic=2u6zoqo&s=6
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podpunkt a)
http://pl.static.z-dn.net/files/d72/2087b075966e227c88b5f4f2671f3331.jpg
http://pl.static.z-dn.net/files/da4/25faf6ccb18914ab914a2f9832f0794b.jpg
podpunkt b)
a) 6x-4=3x+5
6x-3x=5+4
3x=9
x=3
b) 5x-2=4x+5
5x-4x=5+2
x=7
c)3y+4=-y+8
3y+y=8-4
4y=4
y=1
d) 7x-2=3x+6
7x-3x=6+2
4x=8
x=2
e) 2(x-1)=7
2x-2=7
2x=7+2
2x=9
x=4,5