All categories

3 years ago

3x + 1 = 8 I need the steps and answer.

Mathematics

2 answers:

Marat540 [252]3 years ago

8 0

3x + 1 = 8

move +1 to the other side

sign changes from +1 to -1

3x+1-1= 8-1

3x= 7-1

divide by 3 for both sides to get x by itself

3x/3= 7/3

Answer:

x= 7/3 and x= 2 1/3

ICE Princess25 [194]3 years ago

7 0

Answer:

$\large\boxed{x=\dfrac{7}{3}=2\dfrac{1}{3}}$

Step-by-step explanation:

$3x+1=8\qquad\text{subtract 1 from both sides}\\\\3x+1-1=8-1\\\\3x=7\qquad\text{divide both sides by 3}\\\\\dfrac{3x}{3}=\dfrac{7}{3}\\\\x=\dfrac{7}{3}$

You might be interested in

Factor the expression.

hichkok12 [17]

Answer:

Step-by-step explanation:

The answer would be O C. (x-2)(x-1)

7 0

2 years ago

What is the vertex form of this equation y=3(x-2)^2-(x-5)^2

jek_recluse [69]

Answer: Hello, it would be 3(x-2)^2-(x-5)^2

Step-by-step explanation:

6 0

3 years ago

Explain how to divide an amount by number 3

Greeley [361]

Answer:

Dividing by 3 means splitting a number into 3 numbers, all equal. The division sign can be represented by a /.

For example, 12/3=4. We can check our answer by multiplying our answer by 3, and seeing if we get our original answer.

4*3=12

Division is the opposite of multiplication, so it makes sense that multiplication is a valuable tool to check our work.

Hope this helps!

4 0

2 years ago

A bag contains five ping-pong balls numbered 1 to 5. Two balls are removed to form a two digit number. The smallest possible num

blsea [12.9K]

Answer:

$\frac{11}{42}$ or 26.19%

Step-by-step explanation:

If the range of possible numbers is between 12 and 54 then that means that there are 42 (54 - 12) possible numbers that can be made. In this range, there are 11 prime numbers which are the following...

13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53

Therefore, the probability that the number formed is a prime would be $\frac{11}{42}$ which if we divide and multiply the decimal by 100 we get the probability in percentage form.

$\frac{11}{42}$ = 0.2619

0.2619 * 100 = 26.19%

Finally, we can see that the probability of this happening is 26.19%

3 0

2 years ago

Enter the amplitude of the function f(x) . f(x)=3/4cos(3x)+4

Alisiya [41]

Answer:

The amplitude is $\frac{3}{4}$