Question

write a pair of linear equation in two variables x and y such that x=-5 and y=-2 is the solution of the equation.​

Answer 1

Answer:

write a pair of linear equation in two variables x and y such that x=-5 and y=-2 is the solution of the equation.​

Step-by-step explanation:

Answer 2

Answer:

(a) Take x+2y, on putting x=5 and y=2, we get5+2(2)=5+4=9≠7So, (5,2) is not a solution of x+2y=7

(b) Take 5x+2y, on putting x=5 and y=2, we get5×5+2×2=25+4=29≠7So, (5,2) is not a solution of 5x+2y=7.

(c ) Take x+y, on putting x=5 and y=2, we get 5+2=7So, (5,2) is a solution of x+y=7.

(d) Take 5x+y, on putting x=5 and y=2, we get5×5+2=25+2=27≠7

So, (5,2) is not a solution of 5x+7=7.

Step-by-step explanation:

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