Question

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

Answer 1

Step-by-step explanation:

2x+y=12

3x-y=13

by solving

5x=25

x=25/5

x=5

3(5)-y=13

15-y=13

-y=-2

y=2

Answer 2

Answer:

x=5, y=2

Step-by-step explanation:

Take them as simultaneous equations,

2x +y =12_________1

3x-y=13___________2

Add 1 and 2

5x=25

x=5

Substitute x=5 in 1

2x+y=12

2×5+y=12

10+y=12

y=2