Solve for x over the real numbers:
1-3 x==-2 (x+3):
1-3 x==2 (x+3) or 1-3 x==-2 (x+3)
Expand out terms of the right hand side:
1-3 x==2 x+6 or 1-3 x==-2 (x+3)
Subtract 2 x+1 from both sides:
-5 x==5 or 1-3 x==-2 (x+3)
Divide both sides by -5:
x==-1 or 1-3 x==-2 (x+3)
Expand out terms of the right hand side:
x==-1 or 1-3 x==-2 x-6
Subtract 1-2 x from both sides:
x==-1 or -x==-7
Multiply both sides by -1:
x==-1 or x==7
