Simplify the expression by combining like terms: x + 7x

Mathematics

2 answers:

Aneli [31]2 years ago

6 0

Answer:

Like terms means that the numbers have the same variable after them or they don't have a variable at all. It is also important to remember that any letter that doesn't have a number in front of it technically has a 1 in front of it.

For example, x + 3x = 1x +3x. Then I add the numbers in the front and I get 4x.

If it had been 4x + 7x + 3, my answer would have been 11x +3. That's because there were a total of 11 x, but the 3 ones weren't x's so I just leave them alone.

Step-by-step explanation:

alexira [117]2 years ago

5 0

Answer:

$8x$

Step-by-step explanation:

$x+7x$

$8x$

The answer is $8x$ when you simplify because you are adding another $x$ to $7x$ so it becomes $8x$

Hope this is helpful

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Simplify the following expression: 9 – 3x + (-6x) + 4

natima [27]

Answer:

-9x + 13

Step-by-step explanation:

9 -3x +(-6x) +4

you will add -3x+(-6x), then add 9+4

-3x+(-6x) = -9x (a negative pus and negative = a negative

9 +4 = 13

-9x + 13

8 0

2 years ago

Charlene records the number of pieces of red colored candies in ten bags of candy of assorted colors. find and interpret the mea

BaLLatris [955]

To calculate the mean absolute deviation, you first must find the mean of the data and then find the difference between each piece of data and the mean.

Please see the attached picture for the work.

The mean absolute deviation is approximately 1.48.

This means that the numbers of candies in the 10 bags are all very close to one another. There is not much variation.