Question

Q11) f B=x-2, C=y+2,A=-x+2y
then what is the value of A+B+C ?
2x+y+4
2x-y-4
оо
Озу​

Answer 1

Answer:

$\huge\boxed{A+B+C=3y}$

Step-by-step explanation:

$A=-x+2y,\ B=x-2,\ C=y+2\\\\A+B+C=(-x+2y)+(x-2)+(y+2)=-x+2y+x-2+y+2\\\\\text{combine like terms}\\\\=(-x+x)+(2y+y)+(-2+2)=3y$