Question

Himpunan penyelesaian dari x = 5 - y dan 2x + 3y = 7

Answer 1

X = 5 - y

       2x + 3y = 7
2(5 - y) + 3y = 7
10 - 2y + 3y = 7
      -2y + 3y = 7 - 10
                y = -3

x = 5 - y
x = 5 - (-3)
x = 5 + 3
x = 8

Himpunan Penyelesaian = {x, y} = {8, -3}

Answer 2

X= 8
y= -3

smoga dapat membantu :)