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Learn to solve 2-step equations
Add or subtract FIRST Multiply or divide LAST
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Sometimes it is necessary to solve equations by using two inverse operations. For instance, the equation 6x 2 = 10 has multiplication and subtraction. Variable term 6x 2 = 10 Multiplication Subtraction To solve this equation, add to isolate the term with the variable in it. Then divide to solve.
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Try This: Example 5 Solve 4y + 5 = 29. Step 1: 4y + 5 = 29 Subtract 5 from both sides to isolate the term with y in it. – 5 – 5 4y = 24 Step 2: 4y = 24 Divide both sides by 4. 4 4 y = 6
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Additional Example 5: Solving a Simple Two-Step Equation
Solve – 12 = 20. p 4 – 12 = 20 p 4 Step 1: Add 12 to both sides + 12 + 12 = 8 p 4 = 8 p 4 Multiply both sides by 4 Step 2: 4 4 p = 32
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