Answer:
the correct answer is 4 and 21
Answer:
x = 3
y = -1
Step-by-step explanation:
(x-y) + (x+y) = 4 + 2
2x = 6
x = 3
sub x=3 into x+y=2
3+y=2
y=2-3
y=-1
Check by subbing x=3 and y=-1 into x-y=4
(3)-(-1) = 3+1 = 4
Both are 2! 2x2=4 4x2=8 so 8+4=12
Answer:
The correct answer is the associative property of addition.
Step-by-step explanation:
This property states that no matter which way we group things when adding, they will still create the same outcome. Since all of the symbols are addition, the answer is the same.
Answer:
814
Step-by-step explanation:
there has to be a number between 4,8
so either 4 can be at hundred position or 8 can be at hundredth position.
but since 1 comes before 4, then 1 has to be at tens place and 4 has to be at one's place.
so number is 814
