1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tresset_1 [31]
4 years ago
9

Help pls :( Solve for x. -4 + 3x = 20

Mathematics
2 answers:
prohojiy [21]4 years ago
3 0

\huge\text{Hey there!}

\large\textsf{-4 + 3x = 20}\\\rightarrow\large\textsf{3x - 4 = 20}\\\\\large\text{ADD 4 to BOTH SIDES}\\\large\textsf{3x - 4 + 4 = 20 + 4}\\\large\text{CANCEL out: \textsf{-4 + 4} because that gives you \textsf 0}\\\large\text{KEEP: \textsf{20 + 4}} \text{ because it gives you the \textsf{x-value}}}\\\\\large\textsf{20 + 4 = \bf 24}\\\\\large\text{DIVIDE 3 to BOTH SIDES}\\\\\mathsf{\dfrac{3x}{3}= \dfrac{24}{3}}\\\large\text{CANCEL out: }\mathsf{\dfrac{3}{3}}\large\text{ because that gives you \textsf 1}

\large\text{KEEP: }\mathsf{\dfrac{24}{3}}\large\text{ because it helps gives you the result of the  \textsf{x-value}}\\\\\mathsf{x = \dfrac{24}{3}}\\\\\large\textsf{x= 24}\div \large\textsf{3}}\\\large\textsf{x = \bf 8}\\\\\boxed{\boxed{\huge\text{Therefore, your answer is: \textsf{x = 8}}}}\huge\checkmark

\huge\text{Good luck on your assignment \& enjoy your day!}

~\frak{Amphitrite1040:)}

Travka [436]4 years ago
3 0

Answer:

x = 8

Step-by-step explanation:

Given

- 4 + 3x = 20 ( add 4 to both sides )

3x = 24 ( divide both sides by 3 )

x = 8

You might be interested in
What is x if -10=10/3x
Elanso [62]

Answer:

-1/3

Step-by-step explanation:

-10(3x)=10

-30x=10

x=10/-30

x=-1/3

4 0
3 years ago
Read 2 more answers
How do you factor polynomials​
Daniel [21]

Step-by-step explanation:

<em>How do you factor a polynomial? </em>

<em>follow these steps: </em>

<em>1.Check for the GCF first. ... </em>

<em>2.Multiply the quadratic term and the constant term. ... </em>

<em>3.Write down all the factors of the result, in pairs. ... </em>

<em>4.From this list, find the pair that adds to produce the coefficient of the linear term.</em>

7 0
3 years ago
Read 2 more answers
W+z= 340<br> w+x=540<br> x- y = 150<br> y-z=50
Ugo [173]
W=340-z (vice versa)
x=540-w (vice versa)
y=-150+x (vice versa)
z=-50+y ( vice versa)
4 0
4 years ago
10.The sum of first 16 terms of the AP: 10, 6 ,2, ....is
madam [21]

Answer:

<h2>               - 320</h2>

Step-by-step explanation:

a₁ = 10

a₂ = 6

d = a₂  - a₁ = 6 - 10 = -4

n = 16

a₁₆ = a₁ + (n-1)•d = 10 + (16-1)•(-4) = 10 - 60 = -50

S_{n}=\dfrac{a_1+a_n}{2}\cdot n\\\\\\S_{16}=\dfrac{10-50}{2}\cdot 16=-40\cdot8=-320

4 0
3 years ago
Radium-226 has a half life of 1622 years. If you start off with a 200
sweet [91]

Answer:

≈23.6 kg left.

Step-by-step explanation:

For determining this, we can simply use an exponential decay equation representing this scenario:

y= a(0.5)^{\frac{t}{h} }

a: the initial amount

t: the amount of time

h: the half life

Now, substitute the numbers into the equation:

y=200(0.5)^{\frac{5000}{1622} }

Now, solve this equation:

y=220(0.5)^{3.08}

Use a calculator to solve for y:

y= 200(0.118)

y≈23.6 kg left.

3 0
3 years ago
Other questions:
  • -9+8x=35<br> explain please<br> 9-8x=-35<br> please xplain<br> -9-8x=-35<br> Please explain
    7·1 answer
  • Based on the graph, what is the initial value of the linear relationship?
    10·2 answers
  • If f(x)=-12x−3, find x for f(x)=89.
    12·2 answers
  • The volume of the oblique cylinder is 24 ft3.
    10·2 answers
  • Sam potter seven plants last weekend. That is three times less than half the plants he wants to pot next weekend. How many plant
    12·1 answer
  • Which graph has a rate of change of zero? ​
    10·2 answers
  • Given 1 || m ||<br> n, find the value of x.<br> m<br> 140°<br> n<br> (8x+12)
    15·2 answers
  • 3 kitchen assistants can prepare 10kg of vegetables in 30 minutes. How long would it take 30 assistants to prepare the same amou
    12·1 answer
  • Darla scored 18 points in her last basketball game, shooting only 2- and 3-point shots. If she made 7 total
    15·1 answer
  • BRAINLIEST, URGENT!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!