Question

7/2x+1 + 13/y+2=27; 13/2x+1 + 7/y+2=33 please that is so important please sol it now ​

Answer 1

Answer:

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Answer 2

Answer:

We have,

2x+1

7

+

y+2

13

=27...(i)

and

2x+1

13

+

y+2

7

=33....(ii)

Substituting

2x+1

1

=a and

y+2

1

=b in equations (i) and (ii), we get

7a+13b=27...(iii)

and 13a+7b=33....(iv)

Adding equations (iii) and (iv), we get

20a+20b=60

a+b=3...(v)

Subtracting equation (iii) from equation (iv), we get

6a−6b=6

a−b=1...(vi)

Adding equations (v) and (vi), we get

2a=4⇒a=2

Putting the value of a in equation (v), we get

2+b=3⇒b=1

Resubstituting the values of a and b, we get

2x+1

1

=2 and

y+2

1

=1

1=4x+2 and 1=y+2

x=−

4

1

and y=−1

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