5y + 4x = 23 y - 5x = -7 carilah nilai X dan Y mohon di jawab sekarang

5y + 4x = 23
y - 5x = -7 ....... ( ×5)
..
5y + 4x = 23
5y - 25x = - 35
---------------------- --
29x = 58
x = 58/29
x = 2

x = 2 disubstitusikan ke 5y + 4x = 23
5y + 4(2) = 23
5y + 8 = 23
5y = 23 - 8
5y = 15
y = 15/5
y = 3

jadi x = 2 dan y = 3