Răspunsuri

2014-07-11T14:32:19+03:00

 5x + 1 = 8x + -5
 1 + 5x = 8x + -5
 1 + 5x = -5 + 8x
 1 + 5x = -5 + 8x  
1 + 5x + -8x = -5 + 8x + -8x
 5x + -8x = -3x 1 + -3x = -5 + 8x + -8x
 8x + -8x = 0 1 + -3x = -5 + 0 1 + -3x = -5
1 + -1 + -3x = -5 + -1  
 1 + -1 = 0 0 + -3x = -5 + -1 -3x = -5 + -1
 -5 + -1 = -6 -3x = -6    
 x = 2 

Sper ca te-am ajutat :*
2 4 2
2014-07-11T14:34:06+03:00
8x+1=5x-5=
=8x-5x+1=-5=
=3x=-5-1=
=3x=-6=
=x=-6:3->x=-2
1 5 1