Question

find the coordinates for graphing this system of equations x+3y=-15. y=-7​

Answer 1

>> x + 3y = -15

>> y = -7

x + 3y = -15

x + 3(-7) = -15

x - 21 = -15

x = -15 + 21

x = 6

x = 6 , y = -7

coordinates (6,-7)