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Vsevolod [243]
2 years ago
9

14. Write an equation with vanables on each

Mathematics
1 answer:
andrey2020 [161]2 years ago
7 0

Answer:

2x + 3 = 4x + 7

Step-by-step explanation:

2x + 3 = 4x + 7\\-2x = 4\\x = -2

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You are searching for two integers. The sum of twice the first integer and three times the second integer is nine. At the same t
devlian [24]

Answer:  -3 and 5

<u>Step-by-step explanation:</u>

Let x represent the 1st digit and y represent the 2nd digit. Then,

Eq 1: 2x + 3y = 9   →    3(2x + 3y = 9)     →     6x + 9y = 27

Eq 2: 3x + 2y = 1   →   -2(3x + 2y = 1)     →     <u>-6x - 4y =  -2</u>

                                                                              5y = 25

                                                                                y =  5

Substitute y = 5 into either of the original equations to solve for x:

2x + 3y = 9

2x + 3(5) = 9

2x + 15 = 9

2x        = -6

 x        = -3

Check (using the other original equation):

3x + 2y = 1

3(-3) + 2(5) = 1

-9    +  10   = 1

        -1       = 1  \checkmark

4 0
3 years ago
What is the slope of y = -2x and what does this mean?
olga_2 [115]

Answer:

-2 is the slope

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Find the inequality represented by the graph. Thanks!<br><br> (plz no spam...)
nikitadnepr [17]

Answer:

y > (1/3)x - 3.

Step-by-step explanation:

The graph of a line can be written in y = mx + b form where b is the y-intercept and m is the slope.

In the image, the slope of the graph from the given points is 1/3.

In the image, the y-intercept is -3.

Therefore, the line is y = (1/3)x -3. However, we aren’t done yet! This is an inequality, not an equation!

We see the line isn’t dotted, so that means it must be > or <.

We substitute the point (0,0) into the line equation we got and find that 0 > (1/3)(0) - 3 = -3. Since (0,0) is part of the inequality, we have that y > (1/3)x - 3.

I hope this helps! :)

6 0
3 years ago
Read 2 more answers
Which line shows the first error in the solution?
masha68 [24]

Answer:

Line 4

Step-by-step explanation:

6(x+2) = 24

6x+12=24

6x=12

x=2

8 0
3 years ago
Read 2 more answers
Simplify:
OLEGan [10]
15x4y2 letter B is your answer
6 0
2 years ago
Read 2 more answers
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