tentukan himpunan peyelesaian dari sistem persaman linear 3x-2y-7=0dan 4x +7=13!

Mapel : Matematika

Jawaban :

3x - 2y - 7 = 0
3x - 2y = 7... Pers. 1

4x + 7 = 13... Pers. 2

4x = 6
x = 6/4
x = 3/2

Substitusi nilai x = 3/2 ke pers. 1

3x - 2y = 7
3(3/2) - 2y = 7
9/2 - 2y = 7
-2y = 14/2 - 9/2
-2y = 5/2
y = - 5/4

HP = {x, y}
HP = {3/2, - 5/4}

Semoga membantu...