I'll solve it algebraically
x+y=4
x-3y=12
multiply first equatoin by -1 and add to second
-x-y=-4
<u>x-3y=12 +</u>
0x-4y=8
-4y=8
divide both sides by -4
y=-2
sub back
x+y=4
x+-2=4
add 2 to both sides
x=6
x=6
y=-2
(6,-2)
Answer:
8.4 or 6.2
Step-by-step explanation:
Answer:
1 no
2 yes
3 yes
4 no
5 no
6 yes
explanation:
sooooooo just
2 and 3 and 6 :D have a nice thanks giving
Hope it looks good
what color is nhan thinking