karenn.ashford@gmail: Please help!!!!!!!
3(9x+12)-(2x+5)
= 3(9x+12)-1(2x+5)
= 3*9x + 3*12 - 1*2x - 1*5
=27x + 36 - 2x - 5
You son should be able to finish it from here.
Some hints
multiplying a bracket by a negative number always has the effect of changing the sign of term within the bracket.
-(x+5) = -x-5
-(4x-8) = -4x+8
-2(-x+12) = 2x-24
etc
Next time you ask a question could you please put the question in the body of the text. Otherwise it can be mistaken as a nothing question.
you can put the question in the title as well if you want to. That is usually quite helpful.
+118723 
