A bivariate equation.
An equation with more than one variable is called a multivariate equation.
literal equation
a formula
It helps to visualize the problem and to think better about the way(s) you're going to solve it. After you draw a picture, you place there the known information, and denote by a letter the unknown(s). Since you've organized everything on the picture, it's easier to relate things with each other by using the knowledge of geometry. For example, if the equation contains more than one variable, you can express the variable for which you want to solve the equation in terms of other variable(s) (the geometric formulas are very handy).
A bivariate equation.
Multivariable equation
Simultaneous equation* * * * *No, simultaneous equations are two or more equations that have all to be true at the same time (simultaneously) for the solution.An equation with more than one variable is a multivariate equaion.Area = 0.5*Length*Height or a = 0.5*l*h for the area of a triangle has more than one variables, but it is certainly not simultaneous.An equation with a variable is called a single variable equation. An equation that has more than one variable is called as a multi-variable equation. A polynomial equation has one variable in different powers: a common example is quadratic equations.
An equation with more than one variable is called a multivariate equation.
add one to the problem
Only if it has an equality sign otherwise it is an expression.
The number that can replace a variable in an equation to make it a true equation is called the solution or root of the equation. This number satisfies the equation when substituted for the variable. In algebra, finding the solution involves solving for the variable by performing various operations to isolate it on one side of the equation. The solution is the value that balances both sides of the equation, making it true.
literal equation
well, an equation with one variable is a one step equation and an equation with more than 2 variables is a multi-step equation
ordinary differential equation is obtained only one independent variable and partial differential equation is obtained more than one variable.
-- If the equation has only one variable (like 'x' or 'y'), and the only power of the variable anywhere in the equation is '1', then the equation has one solution. -- If the variable appears raised to powers higher than '1', then there are as many solutions as the highest power of the variable. -- If the equation has two or more variables, then there are an infinite number of solutions.
You are given a system of n or more simultaneous linear equations involving n unknowns. Pick one of the unknowns, called the pivot variable. Find an equation in which it appears, called the pivot equation.