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Two-Step Equations and Inequalities 1 of 2
Contributed by: Sonnier
(Original author: Schleper)

A two-step equation, such as 2x + 3 = 9,

has two different operations, multiplication

and addition.  To solve a two-step equation, 

undo the operations in reverse order of the

order of operations.

 

 True or False

 

 

 

2x + 3 = 9

      -3 = -3

2x       = 6

2x ÷ 2 = 6 ÷ 2

 

         x =

3x  ÷ 3 =
3x  =              9 

3x + 1 = 10

     

x =    
÷ 3
x/3+12=8
Solve.
2x+6<12
Solve.
x/2+6=10
Solve.
4=16+6y
Solve.
4y-9<11
Solve.

Mary is saving money to buy a bike that costs

$195. She has saved $95 so far. She plans on

saving $10 each week.  In how many weeks will

she have enough money to buy the bike?  Write

and solve an equation to solve algebraically.

 

 

Equation is

 

Answer is b =

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