How to solve an expression through substitution
- Substitution means putting numbers in place of letters to calculate the value of an expression.
- An expression can be a combination of numbers, letters and operators, grouped together.
Look at the examples below:
If \(a~=~2\) and \(b~=~5\)
How to solve the expression:
Substitute \(a\) with the value \(2\) and \(b\) with \(5\)