This question is super easy, all you need to do is isolate the y variable. When you want to isolate it, you have to get rid of other numbers by doing the opposite sign.
x+2y=8 Subtract the x.
2y=8-x Divide by two.
y=4-1/2x
Answer:
The answer is a _10×+8y=15
So we want to use the Pythagorean a^2 + b^2 = c^2
The answer is explained in photo. B
B=5
Hope this helps!
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