Question

if 2x+y=12and 3x-y=13, find the value of x​

Answer 1

Answer:

X=5

Step-by-step explanation:

2x+y=12 1

3x-y=13 2

1+2 gives

2x+3x=12+13

5x=25

x=25/5

x=5

Answer 2

Step-by-step explanation:

Given, 2x + y = 12....................1.

3x - y = 13 ......................2.

Adding equation 1 and 2

2x + y = 12

3x - y = 13

__________

5x. =.25

x = 25/5

x= 5..................3

putting the value of equation 3 on equation 1

2x + y = 12

2 × 5 + y = 12

10 + y = 12

y = 12 - 10

y = 2.

hence , x = 5

and y = 2.