Simultaneous equations: graphical solver
Set two straight lines and see where they cross: that point solves both equations. Parallel lines show when there is no solution.
Learn simultaneous equations properly
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Questions students ask
How do you solve simultaneous equations by graph?
Draw both lines on the same axes; the coordinates of the point where they cross are the solution.
When do simultaneous equations have no solution?
When the lines are parallel: the same gradient but different intercepts.
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