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Natalija [7]
3 years ago
9

How to change a subtration problem into a additon problem

Mathematics
2 answers:
Mandarinka [93]3 years ago
6 0
If a - b = c
then a = b+ c
lyudmila [28]3 years ago
4 0
Ex;
4 - 5
- change the subtraction sign to a plus (+), and then add a negative sign so it should look like this;
4 + -5
You might be interested in
Equations
sergij07 [2.7K]

Answer:

2x+12=24

first you subtract 12 from both sides

2x+12=24

-12. -12

The 12-12 should cancel itself, the rest of the equation you bring down to get

2x=12 (because 24-12=12)


Now you have 2x=12.
you then divide 2x by both sides.

2x=12

/2x=/2x

The 2x/2x cancels itself out so you then solve for 12/2x.

For this you just divide 12/2 which is 6!

x= 6 is your final answer.
to check this equation you can plug your number back into x to see if it is true! 2(6)+12=24.
6 times 2 is 12 and 12+12 is 24 so your answer (6) is true!


hope this helps! :D

4 0
3 years ago
Read 2 more answers
How to write 21/6 as a mixed number
NNADVOKAT [17]
Divide using long division. The whole number portion will be the number of times the denominator of the original fraction divides evenly into the numerator of the original fraction, and the fraction portion of the mixed number will be the remainder of the original fraction division over the denominator of the original fraction.

3 and 3 over 6

5 0
3 years ago
A manager must select three coders from her group to write three different software projects. There are 7 junior and 3 senior co
gavmur [86]

Answer:

The total number of ways are 168.

Step-by-step explanation:

Consider the provided information.

There are 7 junior and 3 senior coders in her group.

The first project can be written by any of the coders. The second project must be written by a senior person and the third project must be written by a junior person.

For second project we have 3 choices and for third project we have 7 choices.

Now there are 2 possible case:

Case I: If first and second coder is senior, then the total number of ways are:

3\times 2\times 7=42

Case II: If first and third coder is junior, then the total number of ways are:

7\times 3\times 6=126

Hence, the total number of ways are: 42+126=168

6 0
3 years ago
To rewrite the expression ab+a+b+1, Jozelle first writes (ab+a) + (b+1). What property justifies this?
rodikova [14]

Answer:

I believe it is associative property of addition or commutative

Step-by-step explanation:

7 0
3 years ago
What is the average cost of cleaning if there were seperate costs of $1,614.23 $2,196.27, $1,560.58 and $1,392.52
cupoosta [38]
Add them up then divide them by 4.
6763.6/4 = 1690.9 average.
5 0
3 years ago
Read 2 more answers
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