Question

Minta Tolong ya.....​

Answer 1

Jawab:

misalkan

mobil = x

motor = y

maka:

5x+3y = 31rb

4x+2y = 24rb ====> y = 12rb - 2x

sub:

5x+3(12rb-2x) = 31rb

5x+36rb-6x = 31rb

-x = -5rb

x = 5rb

sub

4x+2y = 24rb

4(5rb)+2y = 24rb

20rb+2y = 24rb

2y = 4rb

y = 2rb

Penjelasan dengan langkah-langkah:

mobil 13 = 13 x5 = 65

motor 5 = 5 x 2 = 10 ......65+10 = 75

atau

mobil 11 = 11 x 5 = 55

motor 10 = 10 x 2 = 20 ......55+20 = 75

penyelesaiannya terlalu banyak