X+y=-1
3x-y=21
add them equations
x+y=-1
<u>3x-y=21 +</u>
4x+0y=20
4x=20
divide by 4
x=5
x+y=-1
5+y=-1
minus 5 both sides
y=-6
(x,y)
(5,-6)
D is answer
Not all info is here. what is the original cost and %off?
Answer:
1.5
Step-by-step explanation:
divide 1/2 and add 1
6 and 8 I believe is the answer
D), I believe it is -42. Correct me if im wrong :}
