MAT9 Algebra and Solving Linear Equations

How would you solve the linear equation:

 $x\ +\ 3\ =\ 5$  

• add 3

• subtract 3

How would you solve the linear equation:

 $x\ +\ 7\ =\ 12$  

• subtract 7

• add 7 

How would you solve the linear equation:

 $2\ +\ x\ =\ 5$  

• add 2

• subtract 2

Solve for x:

 $x\ +\ 1\ =\ 3$  

• x = 3

• x = 1

• x = 2

• x = 4

Solve for x:

 $x\ +\ 3\ =\ 5$  

• x = 2

• x = 8

• x = 5

• x = 3

Solve:
3(x - 2) = 18

• 6.7
• 4
• 8
• -4

What is the first step in solving for w in the equation 3w + 5 = 14?

• Add 5 to both sides of the equal sign

• Divide by 3 on both sides of the equal sign

• Subtract 5 from both sides of the equal sign

• Multiply by 3 on both sides of the equal sign

Solve the equation:
-5x = 25

• x = 20
• x = -20
• x = -5
• x = 5

Which operation will cancel out multiplication?

• A.  Addition
• B. Subtraction
• C. Multiplication
• D. Division

Solve:
-4x = 24

• 20
• -20
• 6
• -6