Solve the equation, and check your solution. See Examples 1–7.
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EXAMPLE 1 Using Both Properties of Equality to Solve a Linear Equation

EXAMPLE 2 Using Both Properties of Equality to Solve a Linear Equation

EXAMPLE 3 Solving a Linear Equation

EXAMPLE 4 Solving a Linear Equation

EXAMPLE 5 Solving a Linear Equation

EXAMPLE 6 Solving an Equation That Has Infinitely Many Solutions

EXAMPLE 7 Solving an Equation That Has No Solution

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