Question

Ni 4 dan 5, makasihhhhhhhh

Answer 1

4) y = 4x - 11

3y = -2x - 5

3(4x - 11) = -2x - 5

12x - 33 = -2x - 5

12x + 2x = 33 - 5

14x = 28

x = 28/14

x = 2

y = 4(2) - 11

y = -3

tipot = { 2 , -3}

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

x + 3y = 5

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

x - 9x - 3 = 5

-8x = 8

x = -1

y = -3(-1)-1

y = 2

tipot = { -1 , 2 }