Question

180-2x+180-2y=180
prove x+y =90​

Answer 1

Answer:

180-2x+180-2y=180

360-2x-2y=180

-2(x+y)=180-360

-2(x+y)=-180

-(x+y)=-90

x+y=90

hence prooved ...

hope it helped you...

Answer 2

Answer: proved

Step-by-step explanation:

180-2x+180-2y=180

360-2x-2y=180

-2x-2y=180-360

-2x-2y=-180

(Take -2 as common)

-2(x+y)=-180

x+y= -180/-2

x+y=90

hence proved