9a-4+3(a-11)=23 (Show Work)

Question

anonymous · Answer

9a-4+3(a-11)=23
9a-4+3*a-3*11=23
     9a-4+3a-33=23
             12a-37=23
                   12a=23+37
                   12a=60
                       a=60/12
                       a=5

lgbasallote · Answer

9a - 4 + 3a - 33 = 23
12a - 37 = 23
12a = 60
a = 5

anonymous · Answer

Ok, first everyone above is wrong. The answer is 2. If you substitute a for 5 it comes out 209. Just start substituting a with small numbers, like 2.

lgbasallote · Answer

9(5) - 4 + 3(5 -11) = 23
45 - 4 + 3 (-6) = 23
41 -18 =23
23 = 23

what's wrong?

anonymous · Answer

Your trying to make the problem to complicated. This is basic algebra.

anonymous · Answer

@GreenGermbubble If we sub in a=2 we get 

$$9(2) - 4 + 3(2 -11)$$$$ = 18 - 4 + 3 (-9) $$$$=14 -27  $$$$=-13 \neq 23$$

The correct answer is 5. :)

anonymous · Answer

Haha. Your trying to make the problem more advanced than it really is. Your thinking in different terms than the problem is really in.