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nlexa [21]
3 years ago
10

Solution to 7(y-3) =2(y-9) +2y

Mathematics
1 answer:
dolphi86 [110]3 years ago
4 0
<h3><u>The value of y is equal to 1.</u></h3>

7(y - 3) = 2(y - 9) + 2y

Distributive property.

7y - 21 = 2y - 18 + 2y

Combine like terms.

7y - 21 = 4y - 18

Subtract 4y from both sides.

3y - 21 = -18

Add 21 to both sides.

3y = 3

Divide both sides by 3.

y = 1

You might be interested in
How many negative roots will this function have? f(x) = x^7 – 2x^4 + 7x^2 + 2x – 2<br> help plsss
Vikentia [17]

There are two negative roots to the provided polynomial function

f(x) = x⁷ – 2x⁴ + 7x² + 2x – 2

<h3>What is polynomial?</h3>

Polynomial is the combination of variables and constants systematically with "n" number of power in ascending or descending order.

\rm a_1x+a_2x^2+a_3x^3+a_4x^4..........a_nx^n

We have a polynomial function:

f(x) = x⁷ – 2x⁴ + 7x² + 2x – 2

\rm f(x) =\left(x+1\right)\left(x^6-x^5+x^4-3x^3+3x^2+4x-2\right)

Using the zero product property:

\rm \left x+1\right = 0 \ \ \ or \left x^6-x^5+x^4-3x^3+3x^2+4x-2\right = 0

After solving:

x = -1, x = -0.853, and x = 0.418 (using the graph method)

Thus, there are two negative roots to the provided polynomial function

f(x) = x⁷ – 2x⁴ + 7x² + 2x – 2

Learn more about Polynomial here:

brainly.com/question/17822016

#SPJ1

7 0
2 years ago
9 7/8 - ( -2 4/5 - 1/2)
Viefleur [7K]

Answer:

9 7/8 - ( -2 4/5 - 1/2)  = 13.175

Step-by-step explanation:

Hope this is correct and helps.

3 0
2 years ago
What is the quotient of this division problem?<br> 836 = 246 = ?
g100num [7]

Answer:

3

Step-by-step explanation:

5 0
3 years ago
5+ (x + 2) = <br><br> !!!!!!!!!!!!!!!!!!!!!
DiKsa [7]

Answer:

x + 7

Step-by-step explanation:

5 + (x + 2) = x + 7

5 0
3 years ago
Read 2 more answers
-2.1 minus 6x equals 1.5 find x
pishuonlain [190]
-2.1-6x=1.5 add 2.1 to both sides
-6x=3.6 now divide both sides by -6
X= -.6
7 0
3 years ago
Read 2 more answers
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