Question 22729
you distribute the numbers in front of the () to each number in the () and solve for your variable.

1.   2x-6=5x+15
     -15-6=5x-2x
      -21=3x
       -7=x           

do you see how to get this now?

2.  6m^2+12m=0
you can factor this further by pulling out an 6m
 6m(m+2)=0
set both as equation
6m=0
m=0/6
m+2=0
m=-2