These lines are parallel. They have the same slope. They never intersect and there is no solution.
You can tell immediately if you arrange them in the form
y = m x + b
m = 7/7 = 2/2 = 1
use substitution method/linear combinations to solve then tell how many solutions they have
-7x+7y=7 and 2x-2y=-18
1 answer
1 answer