Question

if x = m + 3 and y = m - 3, show that x + y + 1 = 2m​

Answer 1

Answer is below

Step-by-step explanation:

x=m+3

y=m-3

According to the question :

m+3-m-3+1=2m

m+m+3-3+1=2m

2m+1=2m

L.H.S≠R.H.S

So, it is not prove

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Answer 2

Answer:

Given - X= m+ 3

- y= m-3

To prove- X+ y+1= 2m

solution -

X= m+3

y= m-3

m= 3-X

m= 3+y

3-x= 3+y

3-3= X+y

0= x+y

2m= 2(3-x)

6-2x

2m= 2(3+y)

6+2y

6-2x= 6+2y

6-6= 2y+2x

0= 2(y+x)

0= 2(x+y)

0= 2(0)

= 0

X+y+1= 2m

0+1= 2m

1= 2m

1= 0

1=0

1 is not equal to zero