Question

Find the following 7(1-z) = 8(1+z)​

Answer 1

7(1-z) = 8(1+z)

7 - 7z = 8 + 8z

-8z - 7z = 8 - 7

-15z = 1

z = -1/15

Answer 2

Answer:

$7(1 - z) = 8(1 + z)$

$7 - 7z = 8 + 8z$

$7 - 8 = 8z - 7z$

$- 1 = z$

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