5x + y = 2 | x 1 |
x - 7y= 22 | x 5 |
= 5x + y = 2
5x -35y = 110
---------------------------- -
35 y = -108
y = -108/35
substitusikan y = -108/35 ke persamaan 1
= 5x + y = 2
5x + (-108/35) = 2
5x = 2 + 108/35
5x = 70/35 + 108/35
5x = 188/35
x = 188/35/5
x = 188/35 x 1/5
x = 188/175
semoga bisa membantu ^_^