Lesson 4.6: Add and Subtract Expressions
Presentation
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Mathematics
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7th Grade
•
Practice Problem
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Hard
Standards-aligned
Reed Carbone
Used 19+ times
FREE Resource
7 Slides • 4 Questions
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Add and Subtract Expressions
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Adding and subtracting expressions is just like combining all of the like terms from two different expressions. When we subtract expressions, we need to distribute the negative sign (or the subtraction sign) to all of the terms in the second expression.
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Multiple Choice
Add the expressions -6x + 2 and 10x - 3
16x + 5
-16x - 5
4x + 1
4x - 1
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Multiple Choice
Add the expressions: 4x - 2y and 5x - 3y
1x - y
9x - 5y
-1x - 3y
4x + 5x - 2y - 3y
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Multiple Choice
Subtract the expressions: 4x + 5y and 3x - 2y
x + 7y
x + 3y
7x + 3y
-x - 5y
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Multiple Choice
Subtract the expressions: 12x + 2y + 4 and -3x - 4y + 8
15x + 6y - 4
9x - 2y + 12
9x + 2y + 12
15x - 2y + 4
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A company has two manufacturing plants with daily production levels of 5x+14 items and 3x−7 items, respectively. The first plant produces how many more items daily than the second plant?
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Two communications companies offer calling plans. With Company X, it costs 30 ¢ to connect and then 3 ¢ for each minute. With Company Y, it costs 20 ¢ to connect and then 2¢ for each minute. Write and simplify an expression that represents how much more Company X charges, in cents, for m minutes.
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Add and Subtract Expressions
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