Jawaban:

1. HP = {7,4}

2.

3. HP = { 1,2}

Penjelasan dengan langkah-langkah:

1. 2x - y = 10 → -y = 10 -2x → y = 2x-10

3x + 2y = 29

3x + 2(2x-10) = 29

3x + 4x - 20 = 29

7x = 29 + 20

7x = 49

x = 7

.

y = 2x-10

y = 2(7) - 10

y = 14-10

y = 4

.

HP = {7,4}

.

2.

4x - 2y = 10

-2y = 10 -4x

2y = 4x-10

.

3x + 2y = -2

3x + 4x+10 = -2

7x = -2-10

x = -12/7

.

2y = 4x - 10

2y = 4(-12/7) - 10

2y = -48/7 - 10

y = -48/14 - 5

.

hmmm no 2 sepertinya ada salah tulis soal. berantakan hasilnya

.

3. x + y = 3 → y = 3-x

2x + y = 4

2x + 3 - x = 4

x = 1

.

y = 3-1 = 2

.

HP = { 1,2}