Answer:
it a or the first one or whatevr u wanna call it jsut #1
Step-by-step explanation:
1: Solve for either x or y in one of the equations. So x + y = -1 is y = -x -1
2: substitute the new equation in the opposite equation. So x - (-x - 1) = 7
3: distribute the negative. X + x + 1 = 7
4: combine like terms. 2x + 1 = 7
5: solve for x. Subtract 1 on both sides. 2x = 6
6: divide by 2 to get x by itself. X = 3
7: plug the new value of x into one of the ORIGINAL equations. 3 + y = -1
8: solve for y. Subtract 3 on both sides.
Y = -4
9: the solution is written as (x,y) so the solution would be (3, -4)
1/3 is the slope.
x-3y=2
-3y=-x+2
y=(1/3)x+2/3
Answer:
63°
Step-by-step explanation:
Supplementary angles add up to 180°
So the answer would be 180-117 = 63
Answer:
may be 11.6 but I am not sure
Step-by-step explanation:
