How do you solve 3x+2=y and -9x+3y=11?
1 Answer
Mar 5, 2018
The equations have no solution.
Explanation:
Re-write te equations so you have only constants on the RHS
Eqn 1:
Eqn 2:
Multiply Eqn 1 by 3 to make the x coefficient the same, so you have:
Eqn 1:
Eqn 2:
Add Eqn 1 & 2, you will get an inequality as both x and y terms cancell out.
This means the two equations cannot be resolved, so in terms of geometry, they are two lines which do not intersect.
