Answer:
Step-by-step explanation:
Wouldn’t it be -14?
Answer: The value of n is 5 or -5
Explanation: The reason it could be either is because the absolute value of an number is the positive version of that number wether it already is positive or was negative and those two lines you see beside the n is the symbol for absolute value. Say i have this |-3| the absolute value is 3. Also if I had this |3| the absolute value would still be 3. I really hoped this helped look on other sources too to confirm it!
Step-by-step explanation:
the diagonals of a parallelogram are crossing each other exactly at their midpoints. that means the lengths of both sides of a diagonal are equal.
so, we get
x = 7y - 16
and
2x + 5 = 5y
we can use the first equation as an identity directly in the second equation and get
2(7y - 16) + 5 = 5y
14y - 32 + 5 = 5y
14y - 27 = 5y
9y - 27 = 0
9y = 27
y = 3
x = 7y - 16 = 7×3 - 16 = 21 - 16 = 5