Question

13 (2 - 4) - 3 (z - 9) - 5 (z + 4) = 0
solve this equation​

Answer 1

Answer:

$(2 - 4) - 3(z - 9) - 5(z + 4) = 0 \\ \\ = > - 2 - 3z + 27 - 5z - 20 = 0 \\ \\ = > - 8z + 25 - 20 = 0 \\ \\ = > - 8z + 5 = 0 \\ \\ = > - 8z = - 5 \\ \\ = > 8z = 5 \\ \\ ( - \: and \: - \: cancelled) \\ \\ = > z = \frac{5}{8}$

hope it helps uH

Answer 2

z=(-74)

Step-by-step explanation:

$(2 - 4) - 3(z - 9) - 5(z + 4) = 0 \\ ( - 2) - 3(z - 9) - 5z - 20 = 0 \\ 6(z - 9) - 5z - 20 = 0 \\ 6z - 54 - 5z - 20 = 0 \\ z - 74 = 0 \\ z = 0 - 74 = - 74 \\ therefore \: (z = - 74)$

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