When you know the value for letters in an algebraic expression you can substitute these values into the expression and solve it.
Part of MathsExpressions and equations
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Look at the examples below:
If \(a~=~2\) and \(b~=~5\)
Find \(3a~+~2b\)
How to solve the expression:
\(3a~+~2b\)
Substitute \(a\) with the value \(2\) and \(b\) with \(5\)
\({3}\times{2}~+~{2}\times{5}\)
\(=~6~+~10\)
\(=~16\)