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Solve the system by elimination:

3x – 5y = 19
5x + 2y = 11


Sagot :

Mlcparra16viz
3x - 5y = 19 ... [1]
5x + 2y = 11 ... [2]

2[1] + 5[2]
6x - 10y = 38
25x + 10y = 55
      31x = 93
        x = 3

We substitute the value of x to the second equation:
5x + 2y = 11
15 + 2y = 11
2y = -4
y = -2