y=3x+1=-3x+7 how many solutions are there

Answer 1

3x+1 =-3x +7

6x =6

x = 1

one real solution, x=1

You can graph the two lines

y=3x+1, with slope 3 and y intercept 1

and

y=-3x +7 which has slope -3 and y intercept 7

the two lines intersect at the point (1,4)

just one unique solution, one intersection point