1, 7(x-x2 ) +4(x2-2x)

2, 3+2x- 2/5(10x -3)

3, -2(x2 +7x-5)

4, 2/3(x-1/3) - (x+2)

5, 2x-12 for x =-3

6, x/2+3x for X=-2

7, x/2 + 3x for x=2/5

8, 2z2-z+1 for z=-1/2

9, z-z2 for z=-2/3

10, -x3 + 7x for x=1/5

Thank you to anyone who is willing to help me with these