The question is an illustration of algebraic equation.
- The equation is [tex]3n - 4 = -19[/tex]
- The number is -5
The number is given as n.
So, we have:
[tex]3 \times n \to[/tex] three times the number
[tex]3 \times n - 4 \to[/tex] the difference
So, the equation is:
[tex]3 \times n - 4 = -19[/tex]
[tex]3n - 4 = -19[/tex]
Add 4 to both sides
[tex]3 \times n = -19 + 4[/tex]
[tex]3 \times n = -15[/tex]
Divide both sides by 3
[tex]n = -5[/tex]
Hence, the number is -5.
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