Question

What is the solution of this system of equations
Y=3x+7 y=x-9

Answer 1

(-8 ; -17)

Explanation:

hello : y=3x+7....(*)

y=x-9....(**)

by (*) and (**) : 3x+7 = x - 9

3x-x = -7-9

2x = -16

x = -16/2 = - 8

put this value in (**) : y = -8-9 = -17