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3 years ago

SOLVE THIS: 6(2x+3) =42

Mathematics

1 answer:

AlladinOne [14]3 years ago

7 0

Answer:

x = 2

Step-by-step explanation:

First, distribute 6 to all terms within the parenthesis.

6(2x + 3) = 12x + 18

Isolate the variable x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

12x + 18 = 42

First, subtract 18 from both sides.

12x + 18 (-18) = 42 (-18)

12x = 24

Isolate the variable x. Divide 12 from both sides.

(12x)/12 = (24)/12

x = 24/12

x = 2

2 is your answer for x.

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ozzi

Answer:

7a + 8b + 3c

Step-by-step explanation:

Group together like terms and simplifyy

7 0

3 years ago

Read 2 more answers

Please solve! And explanation!

Oksi-84 [34.3K]

A fraction is a way to describe a part of a whole. The value of x is 6.

<h3>What is a Fraction?</h3>

A fraction is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25.

The value of x can be written as,

$\dfrac{1}{1+\dfrac{1}{1+\dfrac{1}{x}}} = \dfrac{7}{13}\\\\\\\dfrac{1}{1+\dfrac{1}{\dfrac{x+1}{x}}} = \dfrac{7}{13}\\\\\\\dfrac{1}{1+\dfrac{x}{x+1}} = \dfrac{7}{13}\\\\\\\dfrac{1}{\dfrac{x+1+x}{x+1}}= \dfrac{7}{13}\\\\\\\dfrac{x+1}{x+1+x}= \dfrac{7}{13}\\\\$

13x + 13 = 7x + 7 + 7x

13x + 13 = 14x + 7

x = 6

Hence, the value of x is 6.

Learn more about Fraction:

brainly.com/question/1301963

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5 0

2 years ago

1.Multiply and simplify if possible.

vivado [14]

Answer:

One sqrt(7)*x -49sqrt(x)

Two -30sqrt(2)a

Right: - 3 cuberoot(2a)

Step-by-step explanation:

Left Questions

One

sqrt(7)x ((sqrt(x) - 7sqrt(7) ) Remove the Brackets

sqrt(7x) * sqrt(x) - sqrt(7x) * 7sqrt(7)
√(7*x)*sqrt(x) - 7*7*sqrt(x) Combine
√7 (x) - 49x

This question has a a slight bit of ambiguity in it. Is the x outside the brackets underneath the root sign or not? I have taken it as not. Leave a note if I am wrong. <em><u>Edit</u></em>: This question clears itself when you use the original statement. I think it is correctly represented now. When you use √ you have to use brackets to show what is under the root sign.

Two

You can take a lot of common factors out side the brackets.

The common factors are 3*sqrt(2)*a When you do that, you are left with

3*sqrt(2)*a * ( 11 - 21)
3*sqrt(2)*a * (-10)
The final answer is
-30sqrt(2)*a

Of course there are other, more direct ways of doing this.

Right Question.

The problem here is answering in such a way that you are showing work.

Let z = 3∛(2a)

The problem now becomes

z*(1 - 2)

- z

Now substitute back

-3∛(2a) Answer

5 0

3 years ago

If two events A and B are independent, and you know that P(A) =

boyakko [2]

Answer:

i think its 7/10

Step-by-step explanation:

4 0

3 years ago

3x + 10 = 2(x + 6) + 4

Musya8 [376]

Answer:

If your trying to find x im pretty sure the ans is 6

4 0

3 years ago