Solving Equations

In algebra, what type of operations do we use to find the value of x ?

• Inverse operations

• All of the operations

• Only positive operations

• Addition and Subtraction Operations

What is the inverse of subtracting 3? 

• Dividing by 3

• Adding 3

• Multiplying by 3

• Subtracting 3

What is the inverse of multiplying by 7 ?

• subtracting 7

• adding 7

• multiplying by 7

• dividing by 7

What is the first step to be completed on both sides

• subtracting 4

• adding 4

• multiplying by 8

• dividing by 8

• adding 8

How can we check our answer? 

What is the inverse operation of "squaring"?

• cubing

• square root

• dividing

• multiplying

+7 - 3 = ?

(a)  

-7 - 3 = ?

(a)  

Why are they like terms?

(read the answers carefully!)

• same variable and different exponent

• different variable and same exponent

• same variable and same exponent

• different variable and different exponent

In order to solve, you would add 5 to both sides and get:

39x = 78 

What would the last step be? 

• subtract 39

• divide by 78

• divide by 39

• subtract 78