Answer:
-3
Step-by-step explanation:
Difference on each side is +3y and -9
3y=-9
y=-3
Answer:
[tex]x=2, y=-3[/tex]
Step-by-step explanation:
Multiply the first equation by -1 to have your two equations now be:
[tex]-3x+4y=-18[/tex]
[tex]3x-y=9[/tex]
Then add the two equations to get:
[tex]3y=-9[/tex]
Divide both sides by 3 to reach:
[tex]y=-3[/tex]
Then substitute [tex]y[/tex] for [tex]-3[/tex] in either of the two first original equations and solve for x, getting:
[tex]x=2[/tex]
Hope this helps :)
