How do you solve 8a+a-3=6a-2a-3 step by step

Answers

Answer 1

Answer: 8a + a - 3 = 6a - 2a - 3

1. Add the a's on both sides:

9a - 3 = 4a - 3

2. Shift 4a to the left and -3 to the right of the equals sign (this changes their signs):

9a - 4a = -3 + 3

3. Simplify:

5a = 0

So a = 0

Answer 2

Answer:

Applying simple mathematical operations, after isolating 'a' we get the solution o =f the given expression is a = 0.

Using operations like addition, subtraction, multiplication, and division, a mathematical expression is defined as a group of numerical variables and functions.

The given expression is

8a+a-3=6a-2a-3

To solve this equation:

Simplify the like terms,

9a-3 = 4a-3

Add 3 on both sides,

9a = 4a

Isolate a by subtracting 4a on both sides,

5a = 0

Dividing both sides by 5 we get,

a = 0.

Hence,

The solution of the given expression a = 0.

To learn more about the mathematical expression visit:

brainly.com/question/1859113

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jim has 3x as many books s Vhalie. vharlie has 2/3 as manyas bob.bob has 27 books. how many books does jim have

Answers

First step is to figure out what you know. Which person has the known value of books? Bob. Great -- we'll start with him.

Now, who has something with relation to Bob? Charlie (I'm assuming that you made a typo). Since Charlie has 2/3 books as many as Bob, we need to find 2/3 of 27. There are two ways to do this, but if you're not using a calculator, the way I prefer is to divide by 3, then multiply by 2. What is 27/3? 9. What's 9*2? 18. That means that 18 is 2/3 of 27, and it is also the amount of books Charlie has. The last person we have to find the amount of books for is Jim. Jim has 3 times the amount of books Charlie has. What's 18*3? 54. Your answer is Jim has 54 books. =D

A swimming pool is being filled ata rate of 15 pints per minute. How many gallons per hour is this?

Answers

we have to convert the rate from pints per minute to gallons per hour

1 pint = 0.125 gallon

1 minute - 1/60 hours

we can write 15 pints per minute as

15 pints / 1 minute

to convert pints to gallons we have to multiply by 0.125 gallon/pint

to convert minutes to hours we have to multiply by 1/60 hours/minute

$(15 pints*0.125 gallons/pint)/(1 minute * 1/60 hours/minute)$

rate is 112.5 gallons/hour

15(pints) x 60(min)=900 pints
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112.5 gallons per hour.

What is the factor of 16^2-81

Answers

this is the diffiarence of two perfect squares. this should be memorised, but if not here it is

a^2-b^2=(a-b)(a+b)
so 16^2-81=16^2-9^2
so the answer is (16-9)(16+9)

Which statement about vertical angles is false?A. They are formed by two intersecting lines
B. They share a common vertex
C. They share a common side
D. They are congruent