The method entails substituting a selected numerical worth for a variable inside a mathematical expression after which performing the indicated operations to reach at a single numerical end result. On this occasion, the expression is “9b” and the designated worth for the variable “b” is 8. The duty then turns into computing the product of 9 and eight.
The sort of substitution and analysis is a elementary operation in algebra and is essential for understanding how variables have an effect on the result of expressions and equations. It gives a fundamental constructing block for fixing extra complicated algebraic issues, corresponding to simplifying expressions, fixing equations, and modeling real-world phenomena. Traditionally, the event of algebra and variable manipulation has been pivotal in developments throughout varied scientific and engineering disciplines.
