x = -1 or x = 5
r=0 is the solution...
m = 0
Yes, it is the only solution.
Yes.
a = [ 0, 4 ]
root
The two equations are linear.
2*8 - 4*4 = 0, otherwise insert "does not" before equals.
one
-2
The only solution to this is x=0.
The equation 3m - 3m - 7 = 0, simplifies to -7 = 0 this means that the the solution is no solution, since -7 doesn't equal 0.