7. 6y=2 y= 6/2 y=3. ANSWER: 03
8. 2x-x=2. ANSWER: 02
9. (3x)2=3x2. ANSWER: 00
10. 2a+3b=5ab. ANSWER: 10ab
11. 3t×2t2=6t2. ANSWER:6+3x
12. 3d2+4d2=7d4. ANSWER:d1=-1×d2=0,d3=1
13. (x+4)2=x2+16. ANSWER:00
14. a3/a=3. ANSWER:a2
16. ax+6y=15 (x+y) ANSWER:-3/2y
