Question

solve 3x+y=15
2x-y=5​

Answer 1

Step-by-step explanation:

3x+y=15 (1)

2x-y=5 (2)

adding the equ (1) and (2)

$(3x + y = 15) + (2x - y = 5)$

$5x = 20$

$x = \frac{20}{5}$

$x = 4$

taking the value of x=4 in the equation (1)

3x+y=15

3×4+y=15

12+y=15

y=15-12

y=3

(x,y) =(4,3) is the solution of equation