Your answer would be (4x + 3)
X + y = 1.....multiply by -1
4x + y = -23
---------------
-x - y = -1 (result of multiplying by -1)
4x + y = -23
---------------add
3x = - 24
x = -24/3
x = -8 <====
x + y = 1
-8 + y = 1
y = 1 + 8
y = 9 <====
You have to convert those fraction into improper fractions
Answer:
The answer is C. (4x+12)+8x=180