Well the total is 180 degrees
Add everything together which equals 180, x+27+3y+8x+18=180
Therefore combine like terms, 9x+3y+45=180
Subtract 45 from both sides, 9x+3y=135
27 and 3y combined make a right angle, so 90-27=63
63 divided by 3 is 21
y=21
Therefore all that's left is x
Subtract 63 cause we found y
You will get 72 all together,
Divide by 9, you will get 8
Answer:
x=8
y=21
