3 years ago

What is the best definition for combining like terms

1 answer:

8 0

Step-by-step explanation:

Combing like terms means that you combine the terms that are alike. So, if you have integers you would combine the integers. If you had a variable like x, you would combine everything with x. For instance, 2x+4+3+7x, to combine like terms add 4+3 and 2x+7x.

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5(2x − 12) + 21 = 2x + 41 I know the answer is 10 but can someone explain how to get that?

dsp73

$5(2x-12)+21=2x+41\\\\5\cdot2x-5\cdot12+21=2x+41\\\\10x-60+21=2x+41\\\\10x-39=2x+41\qquad|+39\\\\10x-39+39=2x+41+39\\\\10x=2x+80\qquad|-2x\\\\10x-2x=2x+80-2x\\\\8x=80\qquad|:8\\\\\boxed{x=10}$

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3 years ago

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Suppose △LMN≅△PQR .

Tanya [424]

First four answers are correct as congruent parts of congruent triangles are congruent but L Is not the opposite to M so they wouldn’t be congruent nor does NL or PQ have the same connection

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3 years ago

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olchik [2.2K]

Answer:

D angle 6

Step-by-step explanation:

Corresponding angles are in the same place if the line were on top of each other. For example, ang1e 1 and angle 5, are corresponding; angle 3 and angle 7 are corresponding.

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3 years ago

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Aneli [31]

The answer is B

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Step-by-step explanation: