Solve tile IUNO
(1) 2x+3y - 8=0 ; 5x-2y-1=0
by cross multiplication
Answers
Answer:
Step-by-step explanation:
(1)2x+3y-8=0
5x-2y-1=0
a₁=2 , b₁=3 , c₁=-8
a₂=5 , b₂=-2 , c₂=-1
x = y = 1
b₁c₂-b₂c₁ c₁a₂-c₂a₁ a₁b₂-a₂b₁
x = y = 1
[3*(-1)] - [(-2)*(-8)] (-8)*5 - (-1)*2 2*(-2) - 5*3
x = y = 1
-3-16 -40-(-2) -4-15
x = y = 1
-19 -40+2 -19
x = y = 1
-19 -38 -19
x = 1
-19 -19
x = -19 =1
-19
y = -38 =2
-19
so, (x,y)= (1,2)