Tolong kak buat hari ini

misalkan

a = apel

m = mangga

5a + 7m = 10.000

7a + 5m = 9.200

5a+7m=10000 (×7) → 35a+49m =70000

7a+5m=9200 (×5) → 35a+25m=46000

49m – 25m = 70000 – 46000

24m = 24000

m = 1000

5a + 7m = 10000 (m = 1000)

5a + 7(1000) = 10000

5a + 7000 = 10000

5a = 10000 – 7000

5a = 3000

a = 3000 : 5

a = 600.

3a + 2m

= 3(600) + 2(1000)

= 1800 + 2000

= 3800

Jadi harga 3 apel dan 2 mangga

= 3.800 rupiah.