Which answer best describes the solution to the equation
3m – 9 = 9 + 3m?

A.
one solution

B.
no solution

C.
an infinite number of solutions

D.
m = 27


Sagot :

let's check
3m - 9 = 9+3m
collect like terms
3m -3m = 9 + 9
0m = 18
which is not possible, so it will not have any solutions 
3m - 9 = 9 + 3m
-3m             -3m
0m - 9 = 9
       +9  +9
     0m = 18
       0      0
       m = 0
B. no solution