Titik potong antara garis y=4x-11 dengan garis 3y=-2x-5

y = 4x - 11 ------> -4x + y = -11
3y = -2x - 5 ---> 2x + 3y = -5

-4x + y = -11 dikali 1
2x + 3y = -5 dikali 2

-4x + y = -11
4x + 6y = -10
------------------ +
0 + 7y = -21
7y = -21
y = -21/7 = -3

y = -3 subtitusi ke -4x + y = -11
-4x + y = -11
-4x + (-3) = -11
-4x - 3 = -11
-4x = -11 + 3
-4x = -8
x = -8/-4 = 2

x = 2 dan y = -3
Titik potongnya adalah (2,-3)