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x = mobil
y = motor
persamaan yg didapatkan
x + y = 65 [2] 2x + 2y = 130
4x + 2y = 170 [1] 4x + 2y = 170
------------------- -
-2x = -40
x = 20
subtitusikan nilai x ke salah satu persmaan untuk mendapatkan nilai y
x + y = 65
20 + y = 65
y = 45
biaya parkir mobil = 20 x 5.000
= 100.000
biaya parkir motor = 45 x 2.000
= 90.000
100.000 + 90.000 = 190.000
jadi, jawabannya = b. 190.000
x+y=65
4x+2y=170
Di Eliminasi
trus subtitusi deh
Pendapatan uang parkir
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