Question

Find the value of x+y from 4x-5y=172, 5x-4y=251

Answer 1

Step-by-step explanation:

Given :-

4x-5y=172,

5x-4y=251

To find :-

Find the value of x+y ?

Solution :-

Given equations are :

4x-5y=172 -----------(1)

5x-4y=251 -----------(2)

On subtracting (1) from (2)

=> (2) - (1)

5x-4y=251

4x-5y=172

(-)

__________

x + y = 79

__________

Therefore, x + y = 79

Answer:-

The value of x + y for the given problem is 79

Answer 2

Answer:

Step-by-step explanation:

Given :-

4x-5y=172,

5x-4y=251

To find :-

Find the value of x+y ?

Solution :-

Given equations are :

4x-5y=172 -----------(1)

5x-4y=251 -----------(2)

On subtracting (1) from (2)

=> (2) - (1)

5x-4y=251

4x-5y=172

(-)

__________

x + y = 79

__________

Therefore, x + y = 79

Answer:-

The value of x + y for the given problem is 79