3x + 4y – 5 = 0 and 2x – y + 4 = 0 solve the equation

Answer 1

From the second, y=2x+4

sub into the first

3x + 4 (2x+4) - 5 = 0

3x + 8x + 16 - 5 = 0

11x = -11

x = -1

y = 2x+4 = 2

you can also put both equations into Desmos and find the point of intersection of the lines