Question

solve the systems of linear equations grAphically 2x-y-4=0, ,x+y+1=0

Answer 1

Plot the two lines on a graph paper and find their intersection.

$2x-y-4=0 \\ y=2x-4$ (Red line)
$x+y+1=0 \\ y=-x-1$ (Blue line)
intersection is (1,-2) therefore x = 1 and y = -2


Hope this helps :) please mark it as brainliest.

Answer 2

y - 4 = 0
y = 4

x + y + 1 = 0
x + 4 + 1 = 0
x + 5 = 0
x = -5

(x, y) = (-5, 4)