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Natasha_Volkova [10]
3 years ago
15

Solve for x. I need this ASAP so please help me! -x+7= x-5

Mathematics
2 answers:
sattari [20]3 years ago
8 0
-x + 7 = x - 5
add x to both sides of the equation
7 = 2x - 5
add 5 to both sides of the equation
12 = 2x
divide 2 from both sides of the equation
6 = x
nexus9112 [7]3 years ago
7 0

Answer:

First is to collect like terms therefore bring the x to the right and the numbers to the left side:

-x+7=x-5

5+7=x+x

12=2x

Divide both sides by 2 so that we find the value of x

12/2=2x/2

6=x

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What is the sum of the values of x and y that solves this system of equations?
motikmotik

Answer:

C) 3

Step-by-step explanation:

2x-y=3

-4x+2y=-6

4x+3y=11

-4x+2y=-6

4x+3y=11

5y=5

<u>y=1</u>

2x-y=3

2x-1=3

2x=4

<u>x=2</u>

2+1=<em><u>3</u></em>

6 0
3 years ago
Graph the line.<br> y+2=-1/(x-1)
Airida [17]

Answer:

I can't graph on here but to graph you start at the starting point which is -1 in the y-axis. So we start at -1 on the y-axis then we carry out the slope which is -1. Because the slope is negative the graph will be negative so you move down 1 and right 1 continuously.

Step-by-step explanation:

To graph the line you have to put it in y = mx + b form

So first let's distribute

y + 2 = -1x + 1

Subtract 2 from both sides

y = -1x - 1 OR y = -x - 1

4 0
3 years ago
An A-frame cabin is 26.23 feet high at the center and the angle the floor makes with the base is 53. How
Vsevolod [243]

Answer:

<h2>60.84 feet</h2>

solution,

tan \: theta =  \frac{perpendicular}{base}  \\ tan \: (53) =  \frac{bc}{ac}  \\ tan \: (53) =  \frac{26.23}{ac}  \\ ac =  \frac{26.23}{0.4311}  \\ ac = 60.84 \: feet

Hope this helps...

Good luck on your assignment..

7 0
4 years ago
Please I need help!!
telo118 [61]

The regression equation which correctly models the data in this table is y = 1.49x - 107.5,

<h3>How to determine the regression equation?</h3>

From the table of data values, we have the following parameters:

∑x = 632

∑y = 404

∑x² = 80.142

∑xy = 51.448

Mathematically, the regression equation is represented by the following slope equation:

y = Bx + A

Next, we would determine A by using this expression:

A = (∑y·∑x² - ∑x·∑xy)/(n∑x² - (∑x)²)

A = (404×80,142 - 632×51,448)/(5×∑x² - (632)²)

A = (32,377,368 - 32,515136)/(5×80142 - 399,424)

A = -137,768/1286

A = 107.5

For B, we have:

B = (n∑xy· - ∑x·∑y)/(n∑x² - (∑x)²)

B = (5×51,448 - 632×404)/(5×∑x² - (632)²)

B = 1.49.

y = Bx + A

y = 1.49x - 107.5

Read more about regression equation here: brainly.com/question/28037520

#SPJ1

7 0
2 years ago
Figure ABCDEF was reflected across the line y = –x to create figure A'B'C'D'E'F'. On a coordinate plane, a 6-sided figure has po
jarptica [38.1K]

Answer: I think the answer is C. (2, -4)

Step-by-step explanation:

When you reflect an image across the line Y = -X, you switch and negate both the X and Y-values. So just reverse the coordinate of F'. By doing this, you will get (2, -4).

9 0
4 years ago
Read 2 more answers
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