3 years ago

Substitute x=-4 into the expression 5x-x+8

Mathematics

2 answers:

Natasha2012 [34]3 years ago

5 0

Answer:

-8

Step-by-step explanation:

5(-4)-(4)+8

-20+4+8

-20+12

-8

jeyben [28]3 years ago

3 0

Answer:

(-8)

Step-by-step explanation:

Question :

5x - x + 8

First you can solve the equation simply like this.

5x - x + 8

4x + 8

Now they've given that,

x = (-4)

Now, you have to put -4 instead of x and solve the equation.

Let us solve now.

4 x + 8

4 × (-4) + 8

-16 + 8

(-8)

Hope this helps you :-)

Let me know if you have any other questions :-)

You might be interested in

2y = 3x + 4<br> 2x = -3y - 7

anygoal [31]

Answer:

x= -2.........&.........y= -1

Step-by-step explanation:

(x,y)=(-2,-1)

7 0

3 years ago

−13.6 + 5.4 + 5 .....................

docker41 [41]

Answer:

-3.2 is the answers for the question

Step-by-step explanation:

please mark me as brainlest

3 0

3 years ago

Read 2 more answers

A certain brand of upright freezer is available in three different rated capacities: 16 ft3, 18 ft3, and 20 ft3. Let X = the rat

Mrac [35]

Answer:

E(X) = 17.4

Step-by-step explanation:

We can calculate the expected value of a random X variable that is discrete (X takes specific values ) as:

E(X) = ∑xp(x) where x are the specific values of x and p(x) the probability associated with this x value.

In this way the expexted value is

E(X) = ∑xp(x) =(16*0.6)+(18*0.3)+(20*0.2) = 8+5.4+4 = 17.4

5 0

3 years ago

Can anyone help me with this math plz?<br> -7/8k=-21<br> show work plz

Vaselesa [24]

$-\frac{7}{8}k=-21\\\\k=-21:(-\frac{7}{8})\\\\k=-21\cdot(-\frac{8}{7}) \ (7 \ and \ 21 \ divide \ by \ 7)\\\\\huge\boxed{k=24}$

5 0

3 years ago

Read 2 more answers

Milo pays $3 per pound for dog food at Pat’s Pet Palace. The graph below represents the cost per pound of food at Mark’s Mutt Ma

Neko [114]

Where’s the graph ? I think you’ll need to show the graph in order for us to help you

4 0

3 years ago