Odpowiedzi

2010-03-29T20:12:09+02:00
6x-8 _ 0.8x+0.8
------ --------- =5-x + 0.5 /*10
5 2
12x-16-4x+4=10-10x+5
18x=27 /:18
x=1.5
2010-03-29T20:13:19+02:00
2(3x-4) _ 0,8(x+1)= 5-x + 0,5
⁻⁻⁻⁻⁻5⁻⁻⁻⁻⁻ ⁻⁻⁻2⁻⁻⁻⁻⁻
6x-8 _ 0,8x + 0,8= 5- x + 0,5 /*10
⁻⁻5⁻⁻ ⁻⁻2⁻⁻⁻⁻⁻
12x - 16 -(4x + 4)=50 - 10x +5
12x - 4x +10x = 50 + 5 +4 +16
18x= 75