3x + 2y -7 =0 4x + y - 6 =0 By cross multiplication method
Answers
ANSWER
Step-by-step explanation:
3x + 2y - 7= 0
4x + y - 6 = 0
x y 1
2 -7 3 2
1 -6 4 1
x y 1
÷ = ÷ = ÷
2 × -6 - 1 × -7 -7 × 4 - -6 × 3 3 × 1 - 4 × 2
x y 1
÷ = ÷ = ÷
-12 + 7 -28 + 18 3 - 8
x y 1
÷ = ÷ = ÷
-5 -10 -5
lets find X first
x 1
÷ = ÷
-5 -5
-5 x = -5
x = -5 ÷ -5
x = 1
now lets find Y
y 1
÷ = ÷
-10 -5
y -5 = -10
y = -10 ÷ -5
y = 2