All categories

3 years ago

Y=3×+7 y=×-9 what is the solution of the equation

2 answers:

7 0

Since both equations are equal to y you can just make them equal to each other, like this 3x + 7 = x - 9. From there isolate the varible x on one side so that the solution will be on the other side of the equation. I'll do the steps too for you.

3x + 7 = x - 9

2x + 7 = -9

2x = -16

x = -8

Hope this helps :)

Taya2010 [7]3 years ago

4 0

The answer is -8 because you set the equations equal to each other and solve for x

You might be interested in

Rate of change from the line

Ghella [55]

$\textbf{Answer:}$

$\frac{-1}{4}$

$\textbf{Step-by-step explanation:}$

$\frac{y2 - y1}{x2 - x1}$

$\textrm{Use the formula above to determine the rate of change}$

$\frac{1 - 2}{4 - 0} \rightarrow\frac{-1}{4}$

$\textrm{The rate of change of this line is }$ $\frac{-1}{4}$

6 0

3 years ago

Read 2 more answers

A line passes through the points (1, 4) and (3, –4). which is the slope of the line?

mr_godi [17]

stupid thin wont load

4 0

3 years ago

Find the first derivative for y = f(x). fox ) 3x² -5x-1 at a Pocat where a = 4

Brums [2.3K]

Answer:

Step-by-step explanation:

f(x) = 3x² -5x - 1

f'(x) =2*3x - 5*1 +0

= 6x - 5

f'(4) = 6*4 - 5

= 24 - 5

= 19

3 0

3 years ago

15/2 ________ the square root of 55 ( , =)

Tatiana [17]

Answer:

7.416198

Step-by-step explanation:

You must find out which number produces 55 when multiplied by itself

8 0

3 years ago

75 months is how many years

lakkis [162]

Answer:

75 months is 6.25001 calendar years.

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers