Two or more equations that share variables.
Example:two equations that share the variables x and y:
x + y = 6
−3x + y = 2
Those two equations are shown in this graph:
When we have as many equations as variables we may be able to solve them. The solution for this example is where the lines cross at (1,5)
Example:two equations that share the variables x and y:
x + y = 6
−3x + y = 2
Those two equations are shown in this graph:
When we have as many equations as variables we may be able to solve them. The solution for this example is where the lines cross at (1,5)
Copyright © 2018 MathsIsFun.com