Question

Could someone help?

Answer 1

Explanation:

subtract 3 from each

8-3≤3-5z-3<12-3

or 5≤-5z<9

divide by 5

5/5 ≤ -5z/5<9/5

or 1≤-z<1.8

multiply by -1

-1 ≥z>-1.8

or -1.8≤z<-1

Answer 2

-1 ≥ z > -1.8

Explanation:

Maybe you want to find the solution set.

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Subtract 3 from the inequality:

5 ≤ -5z < 9

Divide by -5:

-1 ≥ z > -1.8

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Personally, I like to write these with the inequality symbols pointing to the left. That way, the elements of the expression are in number-line order.

-1.8 < z ≤ -1