simultaneous equations

Basic Substitution

The process of finding the value of an expression by substituting a specific value for the variable.

Negative Numbers

Numbers less than zero, often represented with a negative sign (-).

Multiplication

A mathematical operation where a number is combined with another number a specified number of times.

Parentheses

Symbols used to group numbers or expressions in mathematics, often indicating operations that take precedence.

Find the value of

To calculate the numerical value of an expression based on assigned values to its variables.

Substituting x value

Replacing the variable x in an expression with a specific numerical value.

Step-by-step calculation

A methodical approach to solving a problem by breaking it down into smaller, more manageable steps.

Wrap in parentheses

To enclose numbers or expressions in parentheses to clarify operations in mathematical expressions.