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
geniusboy [140]
4 years ago
8

-1/2x - 7 = -11 What is x ?

Mathematics
2 answers:
Anarel [89]4 years ago
8 0
Simplifying x + 3 + x + 4 = x + 7 + 2x + 7 Reorder the terms: 3 + 4 + x + x = x + 7 + 2x + 7 Combine like terms: 3 + 4 = 7 7 + x + x = x + 7 + 2x + 7 Combine like terms: x + x = 2x 7 + 2x = x + 7 + 2x + 7 Reorder the terms: 7 + 2x = 7 + 7 + x + 2x Combine like terms: 7 + 7 = 14 7 + 2x = 14 + x + 2x Combine like terms: ...
IRISSAK [1]4 years ago
7 0
To solve, first add 7 to each side
-1/2x = -4
then multiply each side by (-1/2)
x = 2
Hope this helps!
You might be interested in
PLEASE HELP ME QUICK~~
Marina86 [1]

Answer:

I don’t really know if I’m correct but I think it’s “the fraction of switch hitting softball players is greater than 1/20”

Step-by-step explanation:

6 0
3 years ago
What is the value of x in the figure shown below?
Hunter-Best [27]

Answer:

Step-by-step explanation:

for missing angle of triangle ABC

let the missing angle be y

31+111+x=180(sum of interior angle of a triangle is 180 degree)

142+y=180

y=180-142

y=38 degree

x=y(being alternate angles)

x=38 degree

8 0
3 years ago
If a= 2^x and b =2^x+1; show that: 8a^3 / b^3 = 2^x+1​
kkurt [141]

Step-by-step explanation:

Given that:

a = 2ˣ

b = 2ˣ⁺¹ = 2ˣ * 2¹ = 2.2ˣ

Now,

{(8a³)/b²}

Substitute the value of x and y in expression then

= [{8(2ˣ)³}/(2.2ˣ)²]

= [(8*2³ˣ)/{2² * (2ˣ)²}]

= {(8*2³ˣ)/(4 * 2²ˣ)}

[since, (aᵐ)ⁿ = aᵐⁿ]

= {(2 * 2³ˣ)/2²ˣ}

= {(2 * 2²ˣ * 2ˣ)/2²ˣ}

[since (2a = a+a, that means 3x = 2x + x)]

= 2 * 2ˣ

= 2ˣ⁺¹

[since (aᵐ * aⁿ = aᵐ+ⁿ)]

<u>Answer:</u> Therefore, {(8a³)/b²} = 2ˣ⁺¹ .

Please let me know if you have any other.

7 0
2 years ago
1. Use the Distributive Property to simplify the expression.
klemol [59]

1 the answer is c-4

2 ?

3 Nothing further can be done with this topic

4 Remove parentheses.  2 x−4

5 6(b - p)

6 Nothing further can be done with this topic

7 98

7 0
3 years ago
Operations with radical expression
lord [1]

Hello from MrBillDoesMath!

Answer:

41 sqrt(3)

Discussion:

My first reaction to the problem was:

sqrt(27) = sqrt ( 3 * 9) = 3 sqrt(3)    and

sqrt(48) = sqrt (3*16)  = 4 sqrt(3).

So...

7 * sqrt(27) +  5 sqrt(48) =

7 * (3 sqrt(3)) + 5 * (4 sqrt(3)) =

21 sqrt(3) + 20 sqrt(3) =

41 sqrt(3)

Regards,  

MrB  

P.S.  I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!


7 0
3 years ago
Other questions:
  • Anton is training for a cross country race. He ran 2 2/4 miles on Saturday and 3 1/4 miles on Sunday. How much farther did Anton
    11·2 answers
  • Please help!!!!!
    7·1 answer
  • One side of a triangle is x in., another side is 2x in., a third side is 2x in., and the perimeter is 36 in.
    15·1 answer
  • Give an example of a rational number that is not a whole number
    13·1 answer
  • Solve the equation for the specified variable. P=A/1+rt for r.
    14·1 answer
  • Which equation represents a line that passes through (2,-1/2<br>and has a slope of 3?​
    8·1 answer
  • Which level does macroeconomics focus on?
    5·2 answers
  • Which of the following probabilities is the greatest for a standard normal distribution?
    11·1 answer
  • Need help with this one question
    11·1 answer
  • What polynomial must be added to 3x2 + 4x + 7 to obtain the sum of 0?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!