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2x + y = 5
y =5 - 2x
3x - 2y = 4
3x - 2 ( 5 - 2x ) = 4
3x - 10 +4x = 4
3x + 4x = 4 + 10
7x = 14
x = 2
2(2) + y = 5
4 +y = 5
y = 5 - 4
y = 1
metode eliminasi :
2x + y =5 > 2 ~ 4x + 2y = 10
3x - 2y =4 > 1 ~ 3x - 2y = 4
7x = 14
x = 2
2(2) + y = 5
4 +y = 5
y = 5 - 4
y = 1
jadi x = 2 dan y = 1
3x-2y=4
eliminasi x menjadi
6x+3y=15
6x-4y=8
dikurang menjadi 3y-(-4y) || 15-8
7y=7
y=1
lanjut
2x+y=5
2x+1=5
2x=5-1
2x=4
x=4/2
x=2
jadi
x =2
y=1