Well I would say the answer to your question is
A why?
well because -4 times -2 equals Positive 8 BUT if you times 8 by negative 1 it turns it back into a negative number!
Hope this helps
The perimeter of a polygon is equal to the sum of all its sides. In a rectangle with dimensions length, x and width, y is calculated through the equation,
P = 2x + 2y
If width is y, then length is equal to 3y - 8. Substituting these to the equaiton,
P = 2(3y - 8) + 2y
Simplifying,
24 = 6y - 16 + 2y
24 = 8y - 16
The value of y from the equation is 5.
x = 3y - 8 = 3(5) - 8 = 7
Answers:
x = 7 feet
y = 5 feet
Y=x+5
Let's say we are given that x is equal to 5.
Thus, since x=5, we can <em>replace</em> x with the number 5.
So instead of y=x+5, we now have:
y=5+5=
Another example:
x=4+y
where y= 2
x=4+2
