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Solving by Elimination Example 1: STEP 2: Look for opposite terms. STEP 1: Write both equations in Standard Form to line up like variables. STEP 5: Solve for the variable. STEP 6: Substitute the answer into the simplest equation and then solve to find the value of the other variable. STEP 7: Write the answer as a point. STEP 8: Check your answer in both equations. STEP 3: If there are no opposite terms, multiply one or both equations by a constant(s) to get opposite terms. STEP 4: Add the two equations.

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Solving by Elimination Example 2: STEP 2: Look for opposite terms. STEP 1: Write both equations in Standard Form to line up like variables. STEP 5: Solve for the variable. STEP 6: Substitute the answer into the simplest equation and then solve to find the value of the other variable. STEP 7: Write the answer as a point. STEP 8: Check your answer in both equations. STEP 3: If there are no opposite terms, multiply one or both equations by a constant(s) to get opposite terms. STEP 4: Add the two equations.

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Practice 2:Practice 1:

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Solving by Elimination Example 3: STEP 2: Look for opposite terms. STEP 1: Write both equations in Standard Form to line up like variables. STEP 5: Solve for the variable. STEP 6: Substitute the answer into the simplest equation and then solve to find the value of the other variable. STEP 7: Write the answer as a point. STEP 8: Check your answer in both equations. STEP 3: If there are no opposite terms, multiply one or both equations by a constant(s) to get opposite terms. STEP 4: Add the two equations.

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Solving by Elimination Example 4: STEP 2: Look for opposite terms. STEP 1: Write both equations in Standard Form to line up like variables. STEP 5: Solve for the variable. STEP 6: Substitute the answer into the simplest equation and then solve to find the value of the other variable. STEP 7: Write the answer as a point. STEP 8: Check your answer in both equations. STEP 3: If there are no opposite terms, multiply one or both equations by a constant(s) to get opposite terms. STEP 4: Add the two equations.

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Practice 3:Practice 4:

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Solving by Elimination Example 5: STEP 2: Look for opposite terms. STEP 1: Write both equations in Standard Form to line up like variables. STEP 5: Solve for the variable. STEP 6: Substitute the answer into the simplest equation and then solve to find the value of the other variable. STEP 7: Write the answer as a point. STEP 8: Check your answer in both equations. STEP 3: If there are no opposite terms, multiply one or both equations by a constant(s) to get opposite terms. STEP 4: Add the two equations.

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Solving by Elimination Example 6: STEP 2: Look for opposite terms. STEP 1: Write both equations in Standard Form to line up like variables. STEP 5: Solve for the variable. STEP 6: Substitute the answer into the simplest equation and then solve to find the value of the other variable. STEP 7: Write the answer as a point. STEP 8: Check your answer in both equations. STEP 3: If there are no opposite terms, multiply one or both equations by a constant(s) to get opposite terms. STEP 4: Add the two equations.

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Practice 5:Practice 6:

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Example 7:Example 8:

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Practice 7:Practice 8:

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Example 9: (page 453: #4)

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Practice 9: (page 456 #38)

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