Answer:
1
Step-by-step explanation:
15 is a prime number
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)
Answer:
i dunno what that means but i think maybe your keyboard broke so the type of letters is random??
Answer:
IT would be B I believe
Step-by-step explanation:
f(x) = 3x + 391
Step-by-step explanation:
The answer is 62/15.
I can't explain it bc I'm taking a test rn but still-