solve the equation using cross multiplication method
5x+12y=7
X+y=7
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Answered by
0
wrong equation
cos if 5x+12y=7
then x+y must be something else other than 7
cos if 5x+12y=7
then x+y must be something else other than 7
navyabhayana:
no.,..
Answered by
1
Answer:
x = -11 , y = 4
Step-by-step explanation:
x y 1
1 7 1 1
12 7 5 12
cross multiply these no.
x = y = 1
7-84 35-7 12-5
x = y = 1
-77 28 7
x = 1 ∴x= -11
-77 7
y = 1 ∴ y= 4
28 7
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