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iogann1982 [59]
3 years ago
13

Solve: 3-x+1=2 Thank youuuu ‍♀️

Mathematics
2 answers:
timurjin [86]3 years ago
5 0

Answer:

<h2>x = 2</h2>

Step-by-step explanation:

3 - x + 1 = 2              <em>combine like terms</em>

-x + (3 + 1) = 2

-x + 4 = 2           <em>subtract 4 from both sides</em>

-x  +4 - 4 = 2 - 4

-x = -2                 <em>change the signs</em>

x = 2

zheka24 [161]3 years ago
3 0

Answer:

x = 2

Step-by-step explanation:

3 - x + 1 = 2

Add the 3 and the 1

- x + 4 = 2

Subtract the 4 on both sides to isolate the -x

- x + 4 (- 4) = 2 - 4

- x = - 2

Divide both sides by - 1 (to get rid of the negative signs)

x = 2

Hope I helped!!

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Find the 13th term of the arithmetic sequence -3x – 1,42 + 4,112 + 9, ...
Strike441 [17]

Answer:

The 13th term is 81<em>x</em> + 59.

Step-by-step explanation:

We are given the arithmetic sequence:

\displaystle -3x -1, \, 4x +4, \, 11x  + 9 \dots

And we want to find the 13th term.

Recall that for an arithmetic sequence, each subsequent term only differ by a common difference <em>d</em>. In other words:

\displaystyle \underbrace{-3x - 1}_{x_1} + d = \underbrace{4x + 4} _ {x_2}

Find the common difference by subtracting the first term from the second:

d = (4x+4) - (-3x - 1)

Distribute:

d = (4x + 4) + (3x + 1)

Combine like terms. Hence:

d = 7x + 5

The common difference is (7<em>x</em> + 5).

To find the 13th term, we can write a direct formula. The direct formula for an arithmetic sequence has the form:

\displaystyle x_n = a + d(n-1)

Where <em>a</em> is the initial term and <em>d</em> is the common difference.

The initial term is (-3<em>x</em> - 1) and the common difference is (7<em>x</em> + 5). Hence:

\displaystyle x_n = (-3x - 1) + (7x+5)(n-1)

To find the 13th term, let <em>n</em> = 13. Hence:

\displaystyle x_{13} = (-3x - 1) + (7x + 5)((13)-1)

Simplify:

\displaystyle \begin{aligned}x_{13} &= (-3x-1) + (7x+5)(12) \\ &= (-3x - 1) +(84x + 60) \\ &= 81x + 59 \end{aligned}

The 13th term is 81<em>x</em> + 59.

3 0
3 years ago
Graph the line with 1/2 slope<br> passing through the point (-5,1).
Ghella [55]

Answer:

Go on dezmos it will do it for you if you just wright the coordinates in

Step-by-step explanation:

5 0
3 years ago
Please answer all i need help Factor the expression using the GCF. 50x-60 Next one Factor the expression using the GCF. 16m+40 n
Anton [14]

Answer:

10(5x - 6).

8(2m + 5).

9(3 - 5c)

Step-by-step explanation:

Given that

50x-60

16m+40

27-45c

The greatest common factor is a measure of the highest number present inside, or common to all the numbers that were listed. To take this one at a time, we have....

50x - 60. The highest number common to both of them is 10, and thus, we have

50x - 60 = 10(5x - 6), and this is the solved part.

16m + 40. The greatest number that's present inside both numbers is 8, and thus we have

16m + 40 = 8(2m + 5) and this is the solved part.

27 - 45c. The greatest common number is 9, and as a result, we have

27 - 45c = 9(3 - 5c), and this is the solution we were searching for

7 0
3 years ago
What is 2819 divided by 55
MaRussiya [10]

Answer:

51.2545454545

Step-by-step explanation:

4 0
3 years ago
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Plaese help i was stuck on it for a while
blagie [28]

Answer:

10

Step-by-step explanation:

30x2=60

60/6=10=

b=10

5 0
3 years ago
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