Y=-3x-2
subsitute -3x-2 for y
-7x+3(-3x-2)=10
distribute
a(b+c)=ab+ac
3(-3x-2)=-9x-6
-7x-9x-6=10
add like terms
-16x-6=10
add 6
-16x=16
multiply -1
16x=-16
divide 16
x=-1
subsitute
y=-3x-2
y=-3(-1)-2
y=3-2
y=1
x=-1
y=1
(x,y)
(-1,1)
160 inches long
40 + 40 gets you 80 add that with another 80 since the other two sides will add up to that then you’ll have yourself 160
Answer:
Wendy leaves school to go home. She walks 60 yards north and then 80 yards west. She is 10 yards from the school.
Step-by-step explanation: