6x-3y=9
y=4x-1
whats the answer?
the answer is -1...push heart plz :). You have to use substitution to get the answer...in order to get x you have to replace part of the first formula with the second :)
6x−3y=9 | /3
2x−y=3 | y=4x−1
2x−4x+1=3
−2x+1=3 | −1
−2x=2 | /−2
x=−1
y=4x−1 | x=−1
y=4∗(−1)−1
y=−5
Should be the right solution. (I hope I made no mistakes)
+80 
