Complicated Problem

Question

Please help me sovlve this problem -7x-4y =7 if y = 3x+2

Answer 1

-7x-4y = 7

y = 3x+2

-7x -4(3x+2) = 7

-7x -12x -8 = 7

-19x =15

x = -15/19

y = -45/19 +2 = - 7/19

or graph the two lines and find their intersection point (-15/19, -7/19)

use a graphing calculator like desmos or TI83