Topics
Systems of equations with 2 unknowns
We can solve a system of 2 equations and 2 unknowns with different methods.
Rearranging
Substituting this into 3y−3x+1=0:
So x=53, which implies y=−32⋅53+32=154. So the intersection is (53,154).
We can eliminate y from the equations by subtracting the second from the first:
So x=53⇒y=154 and the intersection is again (53,154).
We can use either of these methods to systems of equations with 2 equations and 2 unknowns.
Systems of equations with 2 unknowns
We can solve a system of 2 equations and 2 unknowns with different methods.
Rearranging
Substituting this into 3y−3x+1=0:
So x=53, which implies y=−32⋅53+32=154. So the intersection is (53,154).
We can eliminate y from the equations by subtracting the second from the first:
So x=53⇒y=154 and the intersection is again (53,154).
We can use either of these methods to systems of equations with 2 equations and 2 unknowns.