Answer:
22
Step-by-step explanation:
We are given the expression:—
[tex]\displaystyle \large{5n-3}[/tex]
When n = 5, substitute/change n to 5:—
[tex]\displaystyle \large{5(5)-3}[/tex]
Evaluate:—
[tex]\displaystyle \large{25-3=\boxed{22}}[/tex]
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Summary
Substitution
Changing or replacing from a term to another terms/expression is called substitution.
Examples:—
If we are given the expression [tex]\displaystyle \large{2y-1}[/tex] and we want to find the value when y = 4, simply replace y-term to 4.
[tex]\displaystyle \large{2(4)-1=8-1=\boxed{7}}[/tex]
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