90 one's are equal to 9 tens
Answer:
Step-by-step explanation:
We have

So we find GCD = 1
2) By back substitution we get
71407 (543) - 19387(2000) =1
So x = 543 and y = -19387
Because we got 71407 (543) - 19387(2000) =1
y cannot be positive
y can only be negative
Answer:
-2x+4
Step-by-step explanation:
multiply all the components of the bracket by - 1.
then you arrive at the answer above
Answer:
-1 + -4 = -5 below zero....If the temperature is -1 + 4 the temperature would be 3 degrees (-1+4=3)
Step-by-step explanation:
If the temperature is -1 + -4 = -5 below zero (adding two negatives equal a negative number).
If the temperate is -1 + 4 = 3 (+4-1=3) The number is positive because it is larger than the negative number.