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Irina18 [472]
2 years ago
8

What is the answer to 4/7 x - 3 =6

Mathematics
2 answers:
Over [174]2 years ago
8 0
4/7x - 3 = 6      |add 3 to both sides

4/7x = 9        |multiply both sides by 7

4x = 63      |divide both sides by 4

<u>x = 15.75</u>
liraira [26]2 years ago
4 0
(4/7)*x-3=6

(4/7)*x=6+3

(4/7)*x=9

(4x/7)=9 <em>(Multiply terms on both sides of equation by 7)</em>

4x=63

x=63/4
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Daine simplified the expression below.
Dennis_Churaev [7]

Answer:

Step-by-step explanation:

8(1 + 2i) -  (7 - 3i) = 8*1 + 8*2i + 7*(-1) - 3i*(-1)

                          = 8 + 16i -7 + 3i

                          = 8 - 7 + 16i + 3i

                          = 1 + 19i

Daniel forgot to multiply 2i by 8

3 0
2 years ago
Solve to the nearest tenth <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B18%7D%20" id="TexFormula1" title=" \sqrt{18} " alt
wariber [46]
4.2 is your answer.
3 0
3 years ago
-9x-17=39 solve the equation for x
pshichka [43]

Answer:

x = - 56/9 or -6.2

Step-by-step explanation:

6 0
2 years ago
My brother is currently three times as old as me, but in five years, my brother
wolverine [178]

Answer: Your brother is 15 years old right now.

Step-by-step explanation:

Let be "m" your currently age and "b" your brother's currently age.

Knowing that right now he is three times (this indicates multiplication) as old as you, you can write the following equation:

b=3m

In five years your age will be:

 m+5

And your brother's age will be:

b+5

Then, if in five years, your  brother will be twice as old as you, you can set up the second equation:

b+5=2(m+5)

Then, the System of equations is:

\left \{ {{b=3m} \atop {b+5=2(m+5)}} \right.

 Apply the Substitution method and substitute the first equation into the second one and solve for "m":

3m+5=2(m+5)\\\\3m+5=2m+10\\\\m=10-5\\\\m=5

Substitute the value of "m" into the first equation and evaluate in order to find "b":

b=3(5)\\\\b=15

4 0
3 years ago
In the 9th and 10th grades at Jefferson High School, there are 236 students. Of thoes students, 121 are in 9th grade, Of the 214
Lorico [155]

Total -

Right-handed: 214! Left-handed: 22!

Total of students: 236 students


I hope this helped! :D


Step-by-step explanation:

9th Grade: Right Handed: 111! Left Handed: 10!

10 Grade: Right Handed: 103! Left Handed: 22!

Add left handed for both grades. Add right handed for both grades. And add total numbers.

I hope this helped :D    


5 0
3 years ago
Read 2 more answers
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