Answer: Answer is in my explanation
Explanation:
You just have to use the distribution property and the addition and subrtaction proerty of quality, thats all.
1)a is 10
1)b is x
1)c is 9
2)a is 5y
2)b is 10
2)c is 2
3)a is 6
3)b is 12
3)c is 48
3)d is 4
4)a is 4/3
4)b is 4m/9
4)c is -28/9
4)d is -7