Download (1) (modja thinks)

Monday, 12/2/2013
A.A.22 – Solving multi-step
equations with variables on one side
Let’s go on a solving equation
journey with Modja!
(MODJA THINKS) I know the
question wants me to get x
alone.
How to start?
MODJA’S JOURNEY WITH SOLVING EQUATION
Solve for x:
(1) (MODJA THINKS) To solve
this problem, the parenthesis
needs to disappear. How can I
make it disappear?
(2) (MODJA ANSWERS) I
know there’s multiplication
( )
between “-8” and “(2x-1)”. I
can use the Distributive
Property
(3) (MODJA THINKS) How
can I get rid of this
(+8) so “-16x” can be
alone?
(5) (MODJA
THINKS)
How can I
get rid of
“-16” so x
is alone?
(6) (MODJA ANSWERS) The
opposite of “multiply
by -16” is “divided by
-16”. Let me divide by 16 to both left side
and right side.
(4) (MODJA ANSWERS)
The opposite of
“plus 8” is “minus
8”. Let me minus 8
to both the left side
and the right side.
A SNAP SHOT OF MODJA’S THINKING:
MODJA’S HABITS OF WORK WE
CAN CONSIDER
 Before
trying to answer the question,
ask myself “What is the question asking
me to do?”
 In each step of the problem solving, ask
myself “Why did I do that?”