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Sa se afle x din egalitatile:
a) x+1/3+2x-1/2=-1


Răspuns :

X+1/3 +2x-1/2 =-1
2x+2+6x-3= -6
8x -1 = -6
8x = -5
x=-5/8
x+1/3+2x-1/2 = - 1   numitor 6
6x+2+12x-3 =- 6
6x+12x = - 6 - 2 + 3
18x = - 5
x = - 5/18