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
Ira Lisetskai [31]
4 years ago
9

-8(4 + 9x) = 7(-2 -11x)(please show steps)

Mathematics
1 answer:
sleet_krkn [62]4 years ago
5 0
<span>-8(4 + 9x) = 7(-2 -11x)

STEP 1: Simplify both sides of the equation.
</span><span><span><span><span>(<span>−8</span>)</span><span>(4)</span></span>+<span><span>(<span>−8</span>)</span><span>(<span>9x</span>)</span></span></span>=<span><span><span>(7)</span><span>(<span>−2</span>)</span></span>+<span><span>(7)</span><span>(<span>−<span>11x</span></span>)</span></span></span></span>(Distribute)<span><span><span><span>−32</span>+</span>−<span>72x</span></span>=<span><span><span>−14</span>+</span>−<span>77x</span></span></span><span><span><span>−<span>72x</span></span>−32</span>=<span><span>−<span>77x</span></span>−<span>14

STEP 2: Add 77x to both sides.
</span></span></span><span><span><span><span>−<span>72x</span></span>−32</span>+<span>77x</span></span>=<span><span><span>−<span>77x</span></span>−14</span>+<span>77x</span></span></span><span><span><span>5x</span>−32</span>=<span>−<span>14

STEP 3: Add 32 to both sides.
</span></span></span><span><span><span><span>5x</span>−32</span>+32</span>=<span><span>−14</span>+32</span></span><span><span>5x</span>=<span>18

STEP 4: Divide both sides by 5.
5x/5 = 18/5
x = 18/5

YOUR FINAL ANSWER: x = 18/5</span></span>
You might be interested in
Can you help I’ll mark brainliest
Marta_Voda [28]

Answer:

7\sqrt{3}

Step-by-step explanation:

Since this is a 30-60-90 triangle, we know that the sides have the following characteristic:

The side opposite to 30 degree angle: n

The side opposite to 60 degree angle: n\sqrt{3}

The side opposite to 90 degree angle: 2n

Since we know that 7 is opposite to 30-degree, and x is opposite to 60 degree, than we know that x = 7\sqrt{3}

6 0
3 years ago
What is the circumference
IRINA_888 [86]
25.1 yards
multiply the radius by 2 and multiply that number with pi and you get your answer of 25.1 yards
8 0
2 years ago
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre
Novay_Z [31]

Answer:  3+\sqrt{2}

Step-by-step explanation:

Given the following expression shown in the picture:

\frac{7}{3-\sqrt{2} }

You need to use a process called "Ratinalization".

By definition, using Rationalization you can rewrite the expression in its simplest form so there is not Radicals in its denominator.

Then, in order to simplify the expression, you can follow the following steps:

<em>Step 1</em>. You need to multiply the numerator and the denominator of the fraction by  3+\sqrt{2}, which is the conjugate of the denominator  3-\sqrt{2}.

<em>Step 2</em>. Then you must apply the Distributive property in the numerator.

<em>Step 3</em>. You must apply the following property in the denominator:  (a+b)(a-b) = a^2 - b^2

Therefore, applying the procedure shown above, you get:

=\frac{(7)(3+\sqrt{2})}{(3-\sqrt{2})(3+\sqrt{2})}=\frac{21+7\sqrt{2}}{3^2-(\sqrt{2})^2}=\frac{21+7\sqrt{2}}{9-2}=\frac{21+7\sqrt{2}}{7}

<em>Step 4</em>.  You can observe that the expression can be simplified even more. Since:

 \frac{a+b}{c}=\frac{a}{c}+\frac{b}{c}

You get:

\frac{21+7\sqrt{2}}{7}=\frac{21}{7}+\frac{7\sqrt{2}}{7}=3+\sqrt{2}

3 0
3 years ago
Tell me which 4 letters are right! A? B? C? D? F? E? I WILL GIVE BRAINLIEST
Helen [10]

Answer:

Everything but A and C

Step-by-step explanation:

5 0
2 years ago
Y − 16 =<br> plzzz helpppp
chubhunter [2.5K]
Well it depends do u want it in rational form or fraction from or?
5 0
3 years ago
Other questions:
  • Which answer is the best estimate of the correlation coefficient for the variables in the scatter plot?
    9·2 answers
  • In exercises, solve the literal equation for x
    10·1 answer
  • Please help! 30 points!
    14·2 answers
  • party monkey charges $75 for set up and $8 per person. birthday central charges $50 for set-up and $11 per person. for how many
    14·1 answer
  • After a 2 1/2 hour rainstorm, there are 5 inches of water in a bucket outside. What is the rate per inch?
    14·1 answer
  • The line plot shows the distances, in miles, run by joggers in a park.
    13·2 answers
  • The point E(-1,0) is translated 6 units down what are the coordinates
    13·1 answer
  • A restaurant sells 10 fish tacos for $8.49, or 6 chicken tacos for $5.40. Which is the better deal?
    10·1 answer
  • You have 40 quarters. You find 20% more quarters in your room. Then
    10·1 answer
  • Which statement best describes the area of Triangle ABC shown below?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!