Answer :
y = -3
x = 4
5x + 3y = 11 [1]
2x - 7y = 29. [2]
[1]*2
10x +6y = 22 [3]
[2]*5
10x - 35y = 145. [4]
[4]-[3]
-41y = 123
y = -3
sub y into 5x +3y = 11
x = 4
5x + 3y = 11 [1]
2x - 7y = 29. [2]
[1]*2
10x +6y = 22 [3]
[2]*5
10x - 35y = 145. [4]
[4]-[3]
-41y = 123
y = -3
sub y into 5x +3y = 11