Question

(2 Z - 7) - 3 (3z+ 8) = 4 Z - 9​

Answer 1

Answer:

z = -2

Step-by-step explanation:

(2z-7)-3(3z+8) = 4z-9

2z-7-9z-24 = 4z-9

2z-9z-4z = -9+24+7

-11z = 22

z = -22/11

z = -2

Answer 2

Answer:

$= > (2z - 7) - 3(3z + 8) = 4z - 9 \\ \\ = > 2z - 7 - (3) \times (3z) - (3) \times (8) = 4z - 9 \\ \\ = > 2z - 7 - 9z - 24 = 4z - 9 \\ \\ = > - 7z - 31 = 4z - 9 \\ \\ = > - 7z - 4z = 31 - 9 \\ \\ = > - 11z = 22 \\ \\ = > 11z = - 22 \\ \\ = > z = - \frac{22}{11} \\ \\ = > z = - 2$