All categories

2 years ago

Multi step variables I need a step by step or something

Mathematics

2 answers:

Sonbull [250]2 years ago

8 0

First distribute the 3 so you'll have:

12+12x=12x+12

Next you subtract 12 from both sides and you'll get:

12x=12x

then you divide both sides by 12 and you get:

x=x

andreev551 [17]2 years ago

3 0

Problem: 3(4+4x)=12x+12

The first thing that you need to do is distribute 3(4+4x).

12+12x=12x+12

Subtract 12x from both sides.

12=12

This means that the equation has infinitely many solutions.

I hope this helps you :)

You might be interested in

What are the solutions to the system of equations? y=x2−7x+12y=−x+7

kap26 [50]

Answer:

x = 1, y = 6

x = 5, y = 2.

Step-by-step explanation:

y=x2−7x+12

y=−x+7

Substitute for y in the first equation:

- x + 7 = x^2 - 7x + 12

x^2 - 7x + x + 12 - 7 = 0

x^2 - 6x + 5 = 0

(x - 1)(x - 5) = 0

x = 1, 5.

When x = 1, y = -1 + 7 = 6.

when x = 5, y = -5+7 = 2.

3 0

1 year ago

Evaluate the expression m^2 ∙ m^5 ∙ m^-3. Be sure to write your answer in simplest form.

Zielflug [23.3K]

Answer:

m^4

Step-by-step explanation:

To solve you combine all the exponents

5 0

2 years ago

Read 2 more answers

How do you know whether you have to write a sum in simplest form

Ksivusya [100]

You can only simplify fractions, and you can only divide fractions when the numerator and the denominator are divisible by the same number ( 15/9)

6 0

2 years ago

A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time student

Scorpion4ik [409]

Answer:

Sample size should be atleast 55320

Step-by-step explanation:

Given that a group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spent studying per week.

population standard deviation $\sigma = 6 hrs$

Std error = $\frac{6}{\sqrt{n} }$

Margin of error for 95%

= $1.96*\frac{6}{\sqrt{n} } 235.2\\n \geq 55319.04$

Since sample size is number of items it cannot be indecimal.

So we can round off to the next high integer on a safer side.

7 0

3 years ago

√(2a/3b) by √(6a/4c)

gulaghasi [49]

Answer:

a/(√b)(√2c)

Step-by-step explanation:

√(2a/3b) X √(6a/4c) = √(2a*6a)/√(3b*4c)

a/2√12/(√3b*2c) = 2a/2(√1/√b*2c

a/(√b)(√2c)

7 0

2 years ago