Answer:
x=1
Step-by-step explanation:

You substitute
for y in the second equation, because it is equal to y.

Alternate Method:
set both equations equal to y

Then you have

And you substitute one of the equations in for y in the other one

multiply both sides by 2

and solve

The whole rectangle should be seen as 8/8 (not 1 to make it easier)
4/8 +1/8 = 5/8
8/8-5/8 = 3/8
So, Pete painted 3/8 of the rectangle red
Answer: 12x^2+4
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
First, we need to find the other angles. We'll do this by subtracting 180-141, giving us 39. This is one of the angles needed.
Next, we'll find the other angle by subtracting 180-127, giving us 53.
Now, we can set up the expression: 39 + 53 + 8y = 180
Adding like terms: 92 + 8y = 180
Now, subtracting 180-92 to give us 8y = 88
Diving both side by 8, gives us the value of y = 11.