What is 2a+a+2a+a ????

2 answers:

8 0

Hello there!

Whenever you see a variable (letter) without a number in front of it, the "number" would be 1!

Example:

a = 1a

So simply do basic math! For now, ignore the letters!

2a + a + 2a + a

becomes

2 + 1 + 2 + 1

Once you have your answer, simply add an a to the end!

Your answer will have NO exponents because you're adding! If you were multiplying or dividing the variables, then exponents would be an issue.

Hope this helped! :)

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koban [17]3 years ago

7 0

Just combine like terms

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mr Goodwill [35]

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7 0

3 years ago

Find the value of the expression 74.9+5.23-81.4-16

stich3 [128]

Answer:

To find the value of this expression you need to add and subtract from left to right

74.9+5.23-81.4-16 (add the first two, first)

80.13-81.4-16 (74.9+5.23=80.13) (next subtract the next two)

-1.27-16 (80.13-81.4=-1.27) (Last subtract the last two)

-17.27 (-1.27-16=-17.27)

-17.27

Hope this helps ;)