All categories

2 years ago

What is the value of x in the equation below? 7x + 8 = -13

Mathematics

2 answers:

ivann1987 [24]2 years ago

8 0

Answer:

x=-3

Step-by-step explanation:

7x=-13-8

7x=--21

x=-21/7

x=-3

points or brainleist please

cluponka [151]2 years ago

8 0

Answer:

$x=-3$

Step-by-step explanation:

$7x+8=-13$

$\mathrm{Subtract\:}8\mathrm{\:from\:both\:sides}$

$7x+8-8=-13-8$

$\mathrm{Simplify}$

$7x=-21$

$\mathrm{Divide\:both\:sides\:by\:}7$

$\frac{7x}{7}=\frac{-21}{7}$

$x=-3$

Hope it helps

Peace

Pls mark me as brainliest

You might be interested in

LCM of 16, 28, and 56

Sindrei [870]

Answer:

Step-by-step explanation:

2x8=16, 2x14=28, and 2x28=56

6 0

3 years ago

A couple has six children what is the probability that they have all boys

Step2247 [10]

For any birth we have only two possible outcomes either boy or girl. So the chance of getting boy or girl on birth same which is 1/2.

The probability of getting baby boy or baby girl on any birth is

P(Boy) = P(Girl) = 0.5

If a couple has six children then probability that all are boys is

P( all six are boy) = (0.5)^6

= 0.015

The probability that all six are boy is 0.015

4 0

3 years ago

Royce has $15 with him and spends $12 to buy his favorite comics. He has $3 left, which he deposits in the bank. Which number wi

Sonja [21]

Answer:

C: +3

Step-by-step explanation:

We know this because Royce added money to his bank account, not subtract (b). The other options are just there to confuse you.

I hope this helps!!

6 0

3 years ago

Read 2 more answers

The size of a television is usually indicated by the length of the screens diagonal if a person buys a 20 inch television set th

ipn [44]

diagonal = sqrt(a^2 +b^2)

20 = sqrt(12^2 +b^2)

20= sqrt(144+b^2)

20^2 = 144 + b^2

400 = 144 + b^2

256 = b^2

b = sqrt(256) = 16

it is 16 inches wide

8 0

2 years ago

Please help i’m really struggling!!!!

Gnoma [55]

x-intercepts are points of the form (x, 0), and y-intercepts are points of the form (0, y).

You find the x-intercepts by solving for x such that y = f(x) = 0:

$x^3-9x^2+20x-12=0$

You know x - 6 is a factor of f(x), which means x = 6 is a solution to the above equation, and that means that (6, 0) is one x-intercept.

You can find the other two by dividing f(x) by x - 6 (i.e. further factorizing f(x)).

$\dfrac{x^3-9x^2+20x-12}{x-6}=x^2-3x+2=(x-2)(x-1)$

So we have

$x^3-9x^2+20x-12=(x-6)(x-2)(x-1)=0\implies x=6,x=2,x=1$

and this means the x-intercepts are (6, 0), (2, 0) and (1, 0).

The y-intercept is easier to find; set x = 0, then solve for y = f(0):

$y=0^3-9\cdot0^2+20\cdot0-12=-12$

and so the y-intercept is (0, -12).

6 0

3 years ago