Odpowiedzi

2010-03-17T21:49:08+01:00
A) 3(x-8)=6x-9 |:3
x-8=2x-3

x-2x=-3+8
-x=5 |*(-1)
x=-5
1 4 1
2010-03-17T21:50:09+01:00
A) 3(x-8)=6x-9 I:3
x-8=2x-3
1 1 1
2010-03-17T21:51:05+01:00
3(x-8)/3=6x/3 - 9/3
x-8=2x-3
x-2x=-3+8
-x=5
x=-5
1 4 1