We want to use elimination to solve
y = 0 (1)
x + y = 40 (2)
Multiply (1) by -1 to eliminate y.
-y = 0 (3)
Add (2) and (3).
x + y + (-y) = 40 + 0
x = 40
Answer: Multiply by -1.
It's definitely A, gotta be.
Answer:
x=-7, y= -20
Step-by-step explanation:
2x - y =6
x - y = 13
when I subract (x-y =13 ) from (2x-y =6)
2x -y =6
-x +y=-13
______________
x = -7
substitute x=-7 in the second equation
-7 - y =13
-y = 13 +7
-Y = 20
Y=-20
x=-7, y= -20
Answer:
The distance between those points rounded to the nearest tenth is 5.1
Step-by-step explanation:
1. (x2-x1) = (-1 - 4) = -5
2. (y2-y1) = (4 - 3) = 1
3. (-5^)2 + (1)^2 = 25 + 1 = 26
4. √26 = √26
5. 5.099 ---> Rounded to the nearest tenth = 5.1
