20. Rezolvaţi sistemele:
a) x+2·[4x - 5(y+1)]= -2
y-3 [2y+ 4(x-1)]=-17
c) 3*[4x – 3(x+1)] +8= 2(y – x)
5* [2x - 4(x +1)] + 24 = 6(x - y)
Vă rogg​