+
15. Rezolvaţi în ecuatiile:
a 8(2x + 3) - 4(5x + 1) = 6(-x + 5) - 2:
b 5. [(2x + 3) - 2(x + 1)] = [4.5(x - 1) - 2(4 - 2x)] + 23;
c 4. [9 - 5(x - 2)] + 3(3x – 5) = 2. [3(x - 5) +17] - 4;
d 2. [3(2x - 5) + x - 3] + 16 = 18+3. [2. (5x - 4)+ 3(x + 4)];
e 9-7. [3(2x - 1) + 2(x + 5)]=5. [2.(4x – 5) – 3(x - 2)] – x;
1
f 3(x+5)+2, 2x + :7=1.
2
+
• [30x +5)=2 (2x+2)]-7-​