Question

*If 9z + z = 5/10 then -z = ?*

1️⃣ 1/20
2️⃣ -1/20
3️⃣ 20
4️⃣ -20​

Answer 1

Answer:

-1/20

Step-by-step explanation:

9z+z = 1/2

10z = 1/2

z = 1/20

Hence -z = -1/20

Answer 2

$9z + z = \frac{5}{10} \\ 10z = \frac{1}{2} \\ z = \frac{1}{20} \\ - z = - \frac{1}{20}$

Answer is -1/20

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