`47x+31y=63, 31x+47y=15`

Solve the following equations. 47x+31y=2,31x+47y=15

Find the value of (x+y) and (x-y) , if 27x+31y=85 , 31x+27y=89 .

1 15 16 31 47 78 125 ?

Solve by any method: 31x+43y=117, 43x+31y=105

5x + 2y = 31 3x + 7y = 36

The point (-4,5) is vertex of a square and one of its diagonal is 7x-y+8=0. The equation of other diagonal is 7x-y+23=0 7y+x+=30 7y+x=31 x-7y=30 x+7y+31=0

63, 31, 15, 7, 3, ?

Solve the following pair of linear equation 21x+47y=110 and 47x+21y=162

The point (-4,5) is vertex of a square and one of its diagonal is 7x-y+8=0. The equation of other diagonal is 7x-y+23=07y+x+=307y+x=31x-7y=30x+7y+31=0

8, 13, 21, 32, 47, 63, 83 (a) 47 (b) 63 (c) 32 (d) 83