It gives you the value of x, so substitute that value into the first equation, like this:
x + 3y = 2
x = 9 - 3y
9 - 3y + 3y = 2
9 = 2
Somehow, you get 9 = 2, which is DEFINITELY not correct, so maybe there was a typo in typing out the question?
Help
x + 3y =2 (1)
x = 9 -3y (2)
solve the system of equations
1 answer
2 answers