Odpowiedzi

2010-03-03T17:52:04+01:00
A)3x+a=2x+1 a-oblicz a
a= 2x-3x+1
a = -1x+1

b)2(x+m)=m-4x+5 m-oblicz m
2x+2m=m-4x+5
2m-m=-4x-2x+5
m=-6x+5

d)x-3(n+2x)=4n+2x x - oblicz x
x-3n-6x=4n+2x
x-2x-6x=4n+3n
-5x=7n/(-5)
x=-7/5n