Solving Equations & Inequalities

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Slide 1  Solving OneStep Equations & Inequalities
 Algebra Part 2A

Slide 2  Solving Equations with Algebra
 The goal of solving equations is to isolate the variable.
 In other words, “get the variable alone on one side”

Slide 3  Solving OneStep Equations Add & Subtract
 To solve an equation using algebra, perform the opposite operation to both sides.

Slide 5  Solving OneStep Equations Divide
 To solve an equation using algebra, perform the opposite operation.

Slide 7  Solving OneStep Equations Multiply
 To solve an equation using algebra, perform the opposite operation.

Slide 9  Review: Order of Operations
 When you are given a multistep problem, you can use Order of Operations to simplify it.

Slide 10  Checking your Solutions
 After solving an equation you should always check your solution. You do this by substituting your solution in for the variable and checking that the final statement is true.
 Yes. This is true.

Slide 12  Solving OneStep Inequalities
 Inequalities can be solved in the same way as equations with ONE special rule:
 When multiplying or dividing by a negative, flip the sign.

Slide 14  Checking your Solutions to Inequalities
 To check your solution to inequalities, choose a number that fits your solution to test. Your final statement should be true.
 Let’s try 5
 Yes. This is true.