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)
Step-by-step explanation:
(2+3)(2-3)
=5×(-1)
= -5
good morning
have a great day
Answer: C
Step-by-step explanation:
Answer:
1 apple
Step-by-step explanation:
3-2=1
But if you want to be Technical You still have 3. Because you took them away so you still have what you started with.
but the answer is 1 apple. 193 IQ
Answer: 0.00724
Step-by-step explanation:
7.24 divide by 1 = 7.24
7.24 divided by 10 = 0.724
7.24 divided by 100 = 0.0724
7.24 divided by 1000 = 0.00724
