Question

si:
2x+7y=24
8y+3x=31
hallar x2 +y2

Answer 1

X=24-7y/2
X=31-8y/3

3(24-7y)=2(31-8y)
72-21y=62-16y
-21y+16y=62-72
-5y=-10
Y=-10/-5
Y=2

2x+7•2=24
2x=24-14
2x=10
X=10/2
X=5

X2+y2=
5^2+2^2=
25+4=
29