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20-08-2020
Mathematics

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2. Solve for z and express your answer in interval notation: 10 – 4z < 20

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21-08-2020

Answer:

z > -5/2

Step-by-step explanation:

Since both sides are divided by a negative number, the equality is switched.

10 - 4z < 20

(10 - 4z) - 10 < 20 - 10

-4z < 10

(-4z)/-4 < 10/-4

z > -5/2

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