### Annalyn's Scribe

Today we learned about combining multiplying with addition and subraction. This means, we combined the use of multiplying integers with addition and subrtaction. There are another set of 3 rules that you can follow....

Step 1: Box all of the multiplication *include chaperones or extra - or + signs.

Step 2: Multiply all in the box and get 1 integer per box

Step 3: Put them together and solve

**Example:**

(2)(-3) + 2(-3) - (6)(1) + (3)(4)=

[(2)(-3) ] + [2(-3)] - [ (6)(1)] + [(3)(4)] =

-6 -6 6 12

= -18+12= -6

This is multiplying with addition and subraction...

**Algebra:**

Algebra is just like all that stuff we did last year.. it's practically a review =)

Remember a

**variable**is the unknown quality; x+2= ...... x is the variable

An

**expression**is x+2 with no equal sign!

An

**equation**is x+2= ...... it has an equal sign!

A

**co-efficent**is 3x+2=.... the 3 is the co-efficent because it is infront of the variable

A

**constant**is x+2 ...... 2 is the constant because it will always be the constant number that appears in the equation or expression

**Substitution**is replacing the varibale with a given/known quantity.

Example:

4x; where x is 4

= 4 (4)

= 16

**Translation**means translating math to english words, it is best known to use + as

*add*or

*increase*and - to be used as

*subtract*or

*decrease.*

Example:

x+9 ; is a

**number**

*increased*by nine

6x-8 ; is a

**number**

*multiplied*six times

*decreased*by eight.

This stuff is so easy! Mr Pointon taught it to us last year.... you could only remember if you were paying attention! =)

Tomorrow's scribe is.... Marielou!!!!! Good Luck! =)

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