How do you solve - 4 t &gt; - 20 ?

Step 1To solve this inequation divide both sides by (-4).However , in doing this the inequality sign must be reversed. The same would be true if multiplying by a negative number. - 4 t - 4 &lt; - 20 - 4 ⇒ t &lt; 5 Example: − 1 &lt; 2 : multiply both sides by (-1) gives 1 &lt; − 2 : Which is clearly incorrect and is the reason for reversal.i.e. 1 &gt; − 2

Question: "How do you solve - 4 t >..."

High School
Algebra
Pre-Algebra
Equations, expressions, and inequalitie

Geovanni Holder

Answered question

2022-06-03

How do you solve

- 4 t > - 20

Answer & Explanation

kilometrocerobiy4v

Beginner2022-06-04Added 3 answers

Step 1
To solve this inequation divide both sides by (-4).
However , in doing this the inequality sign must be reversed. The same would be true if multiplying by a negative number.

\frac{- 4 t}{- 4} < - \frac{20}{- 4} \Rightarrow t < 5

Example:

- 1 < 2

: multiply both sides by (-1) gives

1 < - 2

: Which is clearly incorrect and is the reason for reversal.
i.e.

1 > - 2

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