What’s equivalent to (18x + 9k) +(2x + 6k)

Mathematics

2 answers:

artcher [175]4 years ago

6 0

18x + 9k + 2x + 6k.....combine like terms
20x + 15k or 5(4x + 3k)

gladu [14]4 years ago

4 0

Combine like terms.

18x + 2x = 20x

9k + 6k = 15k

20x + 15k is your answer

Note that you cannot combine 15k and 20x, because they have different variables

hope this helps

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Anna007 [38]

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3 years ago

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pochemuha

Answer:

The correct answer option is 'both Adler and Erika solved for k correctly because either the addition property of equality or the subtraction property of equality can be used to solve for k'.

Step-by-step explanation:

Both Adler and Erika have solved for k correctly since both the properties, addition property of equality and subtraction property of equality, can be to solve for k.

The fraction $\frac{1}{2}$ has to be subtracted from both the sides so even if it is added, the negative sign still would make it subtracted from both the sides.