Multiply the equation 2x+7y=-1 by -2
add to othe equaiton
4x-3y=-19
<u>-4x-14y=2 +</u>
0x-17y=-17
-17y=-17
divide both sides by -17
y=1
sub back
2x+7y=-1
2x+7(1)=-1
2x+7=-1
minus 7 from both sides
2x=-8
divide both sides by 2
x=-4
x=-4
y=1
(x,y) is normal form
(-4,1) is answer
Answer:
16
Step-by-step explanation:
I did this in 7th grade and had the answer but I don't know the steps
Answer:
8
Step-by-step explanation:
You just gotta divide 64 by 8
<span>a relationship or expression involving one or more variables</span>