the 2nd equation says that y = 5x+13
So substitute that in the 1st equation, and you have
2x + 4(5x+13) = 8
Solve that for x, and then use that to get y.
Solve by the substitution method.
2x + 4y = 8
-5x + y = 13
What is the solution of the system?
1 answer