system of equations

2. the action of replacing someone or something with another person or thing
6. a variable that represents a quantity that is being manipulated in an experiment
7. The dependent variable is the one that depends on the value of some other number
9. method the substitution method is a simple way to solve linear equations algebraically and find the solutions of the variables
10. The lines planes surfaces or objects side by side and having the same distance continuously
15. mathematics, a system of linear equations or a system of polynomial equations is considered underdetermined if there are fewer equations than unknowns
17. inequality Linear inequalities are defined as expressions in which two linear expressions are compared using the inequality symbols
19. to a system a solution to a linear system is an assignment of values to the variables such that all the equations are simultaneously satisfied
20. a surface of which one end or side is at a higher level than another; a rising or falling surface

1. the substitution method is a simple way to solve linear equations algebraically and find the solutions of the variables
3. mathematics is the study of commonplace mathematical objects, like sets, numbers, and functions
4. an angle of 90° to a given line, plane, or surface
5. of equation in mathematics, a set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought
8. them.
11. equation an equation between two variables that gives a straight line when plotted on a graph
12. a point or line common to lines or surfaces that intersect.
13. a numerical or constant quantity placed before and multiplying the variable in an algebraic expression
14. a numerical or constant quantity placed before and multiplying the variable in an algebraic expression
16. method eliminate one of the variables by adding the two equations
18. divide something by passing or lying across it
21. equation