Question

4x + y =30
x + 6y =19
tentukan dengan metode eliminasi

Answer 1

4x + y = 30 (×1) 4x + y = 30
x + 6y = 19 (×4) 4x + 24y = 76

4x + y = 30
4x + 24y = 76 _
-23y = -46
y = -46/-23
y = 2

x + 6y = 19
x + 6(2) = 19
x + 12 = 19
x = 19 - 12
x = 7