Lesson 3: Guided Practice

Solve: x + 13 = 28

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Subtract 13 from both sides. x = 15.

Solve: 5x = 35

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Divide both sides by 5. x = 7.

Solve: x - 19 = 12

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Add 19 to both sides. x = 31.

Solve: x ÷ 7 = 9

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Multiply both sides by 7. x = 63.