Răspuns :
3x + 2 + x - 7 = 4x - 1 + 3x , aducem la acelasi numitor (30)
10 2 3
3(3x+2)+15(x-7)=10(4x-1)+30·3x
9x+6+15x-105=40x-10+90x
9x+15x-40x-90x=-10-6+ 105
-106x= 89⇒ x=-89/106
10 2 3
3(3x+2)+15(x-7)=10(4x-1)+30·3x
9x+6+15x-105=40x-10+90x
9x+15x-40x-90x=-10-6+ 105
-106x= 89⇒ x=-89/106