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3 years ago

How do I solve a system of equations using substitution?

Mathematics

1 answer:

Sonbull [250]3 years ago

8 0

Answer:

A way to solve a linear system algebraically is to use the substitution method. The substitution method functions by substituting the one y-value with the other. We're going to explain this by using an example. We can substitute y in the second equation with the first equation since y = y.

Hope This Helps! Have A Nice Day!!

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Simplify the expression -2/3(12c - 9) + 14c

postnew [5]

Greetings!

Simplify the Expression.
$=\frac{-2}{3}(12c-9)+14c$

Distribute the Parenthesis.
How? Multiply the terms inside the Parenthesis by the term outside of the Parenthesis.
 $=\frac{-2}{3}*12c-\frac{-2}{3}*9+14c$

$=\frac{-2}{3}*\frac{12}{1}c-\frac{-2}{3}*\frac{9}{1}+14c$

$=\frac{-24}{3}c-\frac{-18}{3}+14c$

Combine Like Terms.
$=\frac{-24}{3}c+\frac{14}{1}c-\frac{-18}{3}$

$=\frac{18}{3}c-\frac{-18}{3}$

Reduce to Lowest Terms.
$=6c-6$

The Answer Is:
$\left[\begin{array}{ccc}=6c-6\end{array}\right]$

Hope this helps.
-Benjamin

7 0

3 years ago

Lindsey found the median and mean of the list of numbers below: 4, 6, 8, 8, 15 If the number 23 was added to the list, then ____

Sav [38]

D.) The mean will increase

The mean is all the numbers added together than divided by the amount of numbers there, so if you do this: 4 + 6 = 10 + 16 = 26 + 15 = 41/5 = 8.2

4 + 6 = 10 + 16 = 26 + 15 = 41 + 23 = 64/6 = 10.66666666666

As you can see it increased! Hope this helped! Pls give brainiest if you can

6 0

4 years ago

Simplify 5(R + 2) - 6. 5R + 4 5R - 4 5R - 6

Scorpion4ik [409]

Step-by-step explanation:

Hey, there!!

5(R+2)-6.

Fistly multiply (R+2) by 5.

=5R + 10 - 6

Subtract 6 from 10.

= 5R +4.

Therefore, 5R + 4 is correct answer.

{ While simplifying the expression if there is multiplication or divide do it first and then add or or subtract like terms to get the simplified form of the expressions. }

Hope it helps..

3 0

3 years ago

1. 7x(x-2y) (2+1)(+5)

Neporo4naja [7]

Step-by-step explanation:

7x(x - 2y)

= 7x.(x - 2y)

= 7x² - 14xy

= (2 + 1)(+5)

= (3)(5)

= 3 × 5

= 15

3 0

3 years ago

Read 2 more answers

GIVING BRAINLIEST Which line best represents the line of best fit for this scatter plot? Graph shows numbers from 0 to 10 at inc

svet-max [94.6K]

Answer:

The answer for this question is:

Line S

Step-by-step explanation:

8 0

4 years ago