Question

what is the value of the expression 6m=m-4(-2m+1-m) when m=-8?

Answer 1

plug -8 in wherever there is an m


6(-8) = -8-4[-2(-8)+1-(-8)]

-48 = -8-4(16+1+8)
-48 = -8-4(25)
distribute the -4
-48= -8-100
-48=-108

which means -8 is not the right solution