Jawab:

Penjelasan dengan langkah-langkah:

#Substitusi

(i). 2x + 5y = 10

(ii). 4x + 2y = 12

cari nilai x

(ii). 4x + 2y = 12

4x = 12 - 2y

x = 12/4 - 2/4 y

x = 3/1 - 1/2 y

x = 3 - 1/2 y

— Substitusi nilai x = 3 - 1/2 y, ke pers (i)

(i). 2x + 5y = 10

2(3 - 1/2 y) + 5y = 10

6 - 2/2 y + 5y = 10

6 - 1y + 5y = 10

6 + 4y = 10

4y = 10 - 6

4y = 4

y = 4/4

y = 1 ✓

— Substitusi nilai y = 1, ke x = 3 - 1/2 y

x = 3 - 1/2 y

x = 3 - 1/2 (1)

x = 3 - 1/2

x = 3/1 - 1/2

x = 6/2 - 1/2

x = 5/2 ✓

HP = {5/2 , 1}

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#Answer By : 4Rz