Question

Is (2,-7) a solution of the equation x − 2y = 4 ?
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Answer 1

Step-by-step explanation:

let x=2

y=-7

x-2y=4.........(1)

Substitute the value of x and y in equation (1)

2-2(-7)=4

2-(-14)=4

2+14=4

16=4

16/4=4

Therefore, 2,-7is the solution of the given equation

Answer 2

(0, 2)

(0, 2)Putting x=0 and in L.H.S

(0, 2)Putting x=0 and in L.H.SLHS=0-2(2)=

(0, 2)Putting x=0 and in L.H.SLHS=0-2(2)=-4≠4