Question

Tentuka himpunan penyelesaian berikut
B. x - 3y = 5 dan 7y + 1 + 3x = 0
C . 10 - x - 2y = 0 dan 6 + 2y = 3x

Answer 1

B. x,y = ( 2,-1 )
C. x ,y = ( 4,3 )

Answer 2

X - 3y = 5 dam 7y + 1 + 3x = 0

x - 3y = 5
x = 5 + 3y

7y + 3x = -1
7y + 3(5 + 3y) = -1
7y + 15 + 9y = -1
16y = -1 - 15
16y = -16
y = -1

x = 5 + 3y
x = 5 + 3(-1)
x = 2

HP = {2,-1}


10 - x - 2y = 0 dan 6 + 2y = 3x
10 - x - 2y = 0
-x = 2y - 10
x = -2y + 10

6 + 2y - 3x = 0
6 + 2y - 3(-2y + 10) = 0
6 + 2y + 6y - 30 = 0
8y = 30 - 6
8y = 24
y = 3

x = -2y + 10
x = -2(3) + 10
x = 4

HP = {4,3}