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Systems of Equations and Inequalities

elimination method solves a system of equations by eliminating a variable by addition or subtraction
equivalent equations equations that have the same solution(s)
infinitely many solutions linear systems of equations that have an infinite number of solutions are the same line
no solution when a system of equations do not have an intersection
substitution method eliminates a variable by substituting an expression for a variable
system equations that you solve at the same time
Created by: aprilchauvette