Question

Gasiti solutia pentru ecuatiile:
2(x-3)+4x+3(2x-7)=5(3x+1)+8
5(2x+3)+3(5x-6)+13=8(3x+7)-63
7(4x-3)-4(3x+8)+25=3(4x+9)-43
3(4x-5)-3(2x+7)+32=2(2x+1)-14
6(x+3)+3x+2(2x+5)=3(x+1)-5
3(2x-1)+x+2)-15=5(x+1)+35
5(3x+4)+3(5x+6)-28=7(4x+9)-47

Answer 1

1) 2x-6+4x+6x-21=15x+5+8 de aici rezultă : -23x=41 de unde x=-41/23.