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What is the sum of 4x and 7?
A. 4x+7
B. 3x
C. 11x
D. 3

User Alexwlchan
by
2.8k points

2 Answers

12 votes
12 votes

Answer:

A. 4x+7

Explanation:

What is the sum of 4x and 7?

Add 4x + 7

A. 4x+7

B. 3x

C. 11x

D. 3

User Robyoder
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2.8k points
16 votes
16 votes

Answer:

A. 4x+7

Explanation:

4x has x-term as a variable while 7 only remains as a constant. Therefore, you cannot combine both terms as 11x since 4x and 7 are not like term.

Like terms are terms that have same variables and degrees. Some examples are:

  • 2x and x are like term.
  • 3x and 8x are like term.

Non-like terms are terms that have different variables and degree. Some examples are:

  • x and y are not like term.
  • x² and x are not like term.

Like terms operation:

  • 2x + x = 3x
  • 4x + 5x = 9x
  • 9z + 2z = 11z

Non-like terms operation:

  • 2x + 3y remains as itself.
  • sum of 4 and 7x is 4 + 7x.

Let me know if you have any questions.

User Jyoti Duhan
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3.0k points