Take the value of each variable in the expression and replace the variable by its value. Then do the math!
By eliminating or substituting one of the variables in the two equations in order to find the value of the other variable. When this variable is found then substitute its value into the original equations in order to find the value of the other variable.
Cross multiply then solve for the variable.
Solving for one variable makes it easy to put in a value for the other variables, and find a value for the first variable.
No, because 'x' is a variable.
by multipling
To find the value of the other variable
The answer will depend on what aspect is the variable.
Take the value of each variable in the expression and replace the variable by its value. Then do the math!
The variable that depens on a number or anther variable to find it's value.
By eliminating or substituting one of the variables in the two equations in order to find the value of the other variable. When this variable is found then substitute its value into the original equations in order to find the value of the other variable.
Cross multiply then solve for the variable.
Solving for one variable makes it easy to put in a value for the other variables, and find a value for the first variable.
Substitute the variable in the denominator for a value that will make the denominator have a value of 0 or an imaginary number
to solve for the variable
No, because 'x' is a variable.
It is called the independent variable. For example if you are trying to find y: y = x+1 X is the independent variable, and Y is the dependent variable. The value of Y, depends on the value of X.