A variable by its self is equalt to 1 sp y=1 an 1+3x = 4x so graph 5 and 1

nevar

It's easy if you put it in slope intercept form
y=mx+b...
y + 3x = 1
y = -3x + 1
1 represents the y intercept so put a point on (0, 1). The -3 represents the slope (rise over run) so count from your first point. It's a negative slope so 3 down and 1 right. Your second point is (1, -3). Now connect the dots and done!
check the pic.