9z+8 = 3z-10 9z-3z = -10-8 6z = -18 z = -3
9z-5z = 30+z 3z = 30 z = 10
9z
8x + 9z
The following steps lead you to the correct answer: 9z = 5z + 16 9z - 5z = 16 4z = 16 z = 4, thus the correct answer is z = 4
9z+8 = 3z-10 9z-3z = -10-8 6z = -18 z = -3
9z-5z = 30+z 3z = 30 z = 10
9z
8x + 9z
The following steps lead you to the correct answer: 9z = 5z + 16 9z - 5z = 16 4z = 16 z = 4, thus the correct answer is z = 4
12x-4y+9z+2y =12x-2y+9z
-3z+17+12z = 11 9z = -6 z = -2/3
2 + 14z = -8 + 9zSubtract 9z from each side:2 + 5z = -8Subtract 2 from each side:5z = -10Divide each side by 5:z = -2
use the quadratic formula. when done so the roots are z=-3, and z=-6
3-5z
9z + 10 - 6z = 7 + 2z - 3 gather together z terms on the left 3z + 10 = 7 + 2z - 3 gather integers on the right 3z + 10 = 2z + 4 subtract 2z from each side z + 10 = 4 subtract 10 from each side z = - 6 ----------------check in original equation 9(- 6) + 10 - 6(- 6) = 7 + 2(- 6) - 3 - 54 + 10 + 36 = 7 - 12 - 3 - 8 = - 8 --------------checks
3(3z + 4)