X + 5y = 11, 4x + 2y = 8

X + 5y = 11
4x + 2y = 8

 

ANSWER :

S = { 1 , 2 }

STEP BY STEP EXPLANATION :

X + 5Y = 11

4 + 2Y = 8

_______________

X + 5Y = 11(-4)

4X + 2Y = 8

________________

-4X - 20Y = -44

4X + 2Y = 8

_______________

-18Y = -36

Y = (-36)/(-18)

Y = 2

_______________

X + 5Y = 11

X + 5 × 2 = 11

X + 10 = 11

X = 11 - 10

X = 1

Therefore , the solution for linear sistem is S = { 1 , 2 }