Question

15. (2z - 7) - 3(3z + 8) = 4z -9 ​

Answer 1

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

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

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

-11z = 24

z= (- 24/11)

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