solve the equation by cross multiplication method 3x - 5y = - 1 9 ,-7 +3y + 7
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we have ,
3x - 5y + 19 = 0..................(1)
-7x + 3y - 7 = 0...............................(2)
Here,
a1 = 3 , b1 = -5 & c1 = 19
a2 = -7 , b2 = 3 & c2 = -7
By Cross multiplication,
See in attachment.
x = 11/13
&
y = 56/13.
3x - 5y + 19 = 0..................(1)
-7x + 3y - 7 = 0...............................(2)
Here,
a1 = 3 , b1 = -5 & c1 = 19
a2 = -7 , b2 = 3 & c2 = -7
By Cross multiplication,
See in attachment.
x = 11/13
&
y = 56/13.
Attachments:
Answered by
1
Answer: x= -2 , y = -5
Step-by-step explanation:
By using cross over formula we do:-
bc ca bb.
Attachments:
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