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salantis [7]
2 years ago
11

Solve each system of equations below by the substitution method. And show your work.

Mathematics
1 answer:
Simora [160]2 years ago
7 0
Instead of typing it all on here, I included my explanations with the work.

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Solve a=2b-c for b<br><br> Can someone help me
Sauron [17]

Answer:

b=\frac{a}{2} +\frac{c}{2}

Explanation:

While solving literal equations could be quite overwelhming, simply solve it by using normal equation solving methods.

For example, if you were to solve 2x + 3 = 9

You would add 3 on both sides and divide both sides by 2 to determine x.

Do the same thing for literal equations, and if in doubts, plug in numbers to check your work.

Step-by-step explanation:

For this problem, add c on both sides, we do this because we are aiming to eliminate the c from both sides.

a+c =2b

In order to find the value of b, divide both sides by 2, we do this because we want to get rid of the coefficient.

This should leave you with the answer of b=a/2 + c/2

3 0
3 years ago
1. A person owns a collection of 30 CDs, of which 5 are country music. If 2 CDs are selected at
OverLord2011 [107]

Answer:

Step-by-step explanation:

Sunflower can u please come answer my question next it says

HELP ASAP WILL GIVE BRAINLIEST PLEASE IM DESPERATE!!!!!!!

5 0
2 years ago
Read 2 more answers
Miss Holman gave a 90-cent tip to a waitress for serving a meal costing $6.00. What percent of the bill was her tip?
horsena [70]
15% of the bill was her tip.
7 0
3 years ago
The binomial (x + 5) is a factor of x2 + 8x + 15. What is<br> the other factor?
puteri [66]

Answer:

x+3

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
6m-6=9m+15 (Show work)​
9966 [12]

Answer:

m=-7

Step-by-step explanation:

6m-6=9m+15

Add 6 to both sides:

6m-6+6=9m+15+6

6m=9m+21

Subtract 9m from both sides:

6m-9m=9m+21-9m

-3m=21

Divide both sides by -3:

\frac{-3m}{-3}=\frac{21}{-3}

m=-7

6 0
3 years ago
Read 2 more answers
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