Foundations of Algebra Solving Equations

In the equation
x + 7 = 12
7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation? 

• Subtract 7 from both sides. The solution is x = 5.

• Add 7 to both sides.
  The solution is x = 19.

• Multiply both sides by 7 The solution is x = 84.

Solve the equation:
1/2x = 6

• x = 12

• x = -12

• x = 3

• x = -3

To Solve the Equation Below, you would?
x - 62 = 123

• add 62 to each side

• subtract 62 from each side

• multiply each side by 62

• Add 123 to each side

The objective when solving an equation is to....

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.

What is the value of x?

• 18.6

• -6.744

• 12.2

• -0.2

• 
• 
• 
• 

Solve

• 5

• 2

• No Solution

• Infinitely Many Solutions

Solve for a

• 18.6
• -6.744
• 12.2
• -0.2

Solve for x