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Kaylis [27]
3 years ago
12

Simplify the following by collecting like terms 9x+x-4x

Mathematics
1 answer:
Mamont248 [21]3 years ago
5 0

Answer:

9x + x - 4x = 6x

they're all like terms so we just add and subtract

You might be interested in
Who can help me with this
Flauer [41]
C - 0.15c is the same as 1c - 0.15c.
1 - 0.15 = 0.85.

Joe can also use 0.85c.
8 0
3 years ago
Find the value of the variable such that: the value of 5−a is 20 greater than the value of 6a−1
vovangra [49]

Answer:

-2

Step-by-step explanation:

(5 - a) = 20 + (6a -1) . . . . . 5-a is 20 greater than 6a-1

5 = 7a +19 . . . . . . . . . . . . . add a, collect terms

-14 = 7a . . . . . . . . . . . . . . . subtract 19

-2 = a . . . . . . . . . . . . . . . . divide by 7

The value of the variable is -2.

_____

<u>Check</u>

5 - (-2) = 7

6(-2) -1 = -13

7 is 20 greater than -13, so the answer checks OK.

4 0
3 years ago
Translate the following verbal expression into an algebraic expression.
poizon [28]

Answer:

3 * (x + 7)

Step-by-step explanation:

Mark number as x

Then the sum of a number and seven is x + 7

Three times x + 7 can be written as

3 * (x + 7)

Parentheses mean that we first add x and 7 and then multiply their sum by 3

Alternatively you can write it as 3x + 21, since

3 * (x + 7) = 3 * x + 3 * 7 = 3x + 21

5 0
3 years ago
Kristina is buying a chair that has a regular price of $349. It is on sale for 1/4 (Fraction) off the regular price. There is a
Paladinen [302]

Answer:

277.46

Step-by-step explanation:

8 0
2 years ago
Which function below is the inverse of f(x)= 7x-1/2
Keith_Richards [23]

Answer: f^{-1}(x)=\frac{x}{7}+\frac{1}{14}

Step-by-step explanation:

If we have y=7x-1/2, the inverse is where we solve for x instead of y.

We can isolate x to get 7x=y+1/2, then divide by 7 to get x=y/7+1/14.

Therefore, f^{-1}(x)=\frac{x}{7}+\frac{1}{14}.

Hope that helped,

-sirswagger21

8 0
3 years ago
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