Question

Solve for z −4z + 31 ≥ 17z + 23

Answer 1

Answer:

z ≤ 8/21

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Step-by-step explanation:

Flip the inequality sign since you are multiplying by a negative number

 21z-8  ≤ 0

1.2    Divide both sides by  21  

 z-(8/21)  ≤ 0

Add  8/21  to both sides

z ≤ 8/21

Answer 2

$z \leqslant \frac{8}{21}$