Answer:
plot those lines on graphs and find the intersection of those lines
in this way, you can get the solution and then you can verify by solving them simultaneously it will give the same answer.
solving simultaneously:
2x-1 = -4x-7
2x +4x = -7+1
6x = -6
x = -1
so at x = -1 they should intersect and Y value would be
y = 2x-1= 2(-1)-1 = -3
