Question

Is (2,5) a solution to the system of equations 6x+y=17 and 3x+2y=16?

Answer 1

by elimination method,

6x + y = 17

3x + 2y = 16

by elimination method,

2 x. 6x + y = 17

3x + 2y = 16

12x + 2y = 34

3x + 2y = 16

9x = 18

x =2

6x + y = 17

6(2) + y = 17

12 + y =17

y = 17-12

y= 5