**Variable**- a

**letter**that represents a number in an algebraic equation or expression

**Constant**- the integer in an algebraic expression or equation

**Expression**- pattern,

**many**answers ex. 5x, 5x5

**Equation**- only has

**one**answer, has an

**equal**sign

**ex**. 5x=25, 5x5=25

**Steps**:

1)

**Isolate**the variable.2)

**Cancel**using the**opposite**of the number.**ex**. (+2)'s opposite is (-2)3) Constant is cancelled with the

**zero pair**.4)

**Balance**, do the same operation on the other side of the = sign.5)

**Verify**to check. (equality)**One Step Equations**

x+2=2

x+[2-2]=[2-2]

x=0

**Verify**:

x+2=2

0+2=2

2=2

6=2x

6/2=2x/2

3=x

**Verify**:

6=2x

6=2(3)

6=6

**Two Step Equations**

7=4x+3

[7-3]=4x+[3-3]

4/4=4x/4

1=x

**Verify**:

7=[4x1]+3

7=[4+3]

7=7

2x+1=5

2x+[1-1]=[5-1]

2x/2=4/2

x=2

**Verify:**

[2x2]+1=5

[4+1]=5

5=5

**Solving One Step Equations**

Paulo, WOW! This is your best post so far! I really liked your explanations and use of colour that didn't hurt my eyes. Next time I advise you to take clearer pictures because they were sort of hard to see.

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