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 at least 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 at least 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)
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