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Harlamova29_29 [7]
3 years ago
11

Solve for x. -9x - 9 = x + 21

Mathematics
2 answers:
Nataly_w [17]3 years ago
6 0

Answer:

x=-3

Step-by-step explanation:

Original equation: -9x-9 = x+21

Add 9 to both sides: -9x=x+30

Subtract x from both sides: -10x=30

Divide by -10  on both sides: x=-3.

Let me know if this helps!

gregori [183]3 years ago
3 0

Answer:

x = -3

Step-by-step explanation:

1. add 9 to both sides -9x-9+9=x+21+9

2. simplify -9x=x+30

3. subtract x from both sides -9x-x=x+30-x

4. simplify -10x=30

5. divide both sides by -10 -10x/-10 = 30/-10

simplify and you're done!

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disa [49]

Answer:

N = 18

Step-by-step explanation:

The triangles are similar, thus the ratios of corresponding sides are equal, that is

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5N = 90 ( divide both sides by 5 )

N = 18

5 0
3 years ago
if the sum of a number and nine is tripled the results is seven less than twice the number. find the number
aliina [53]
Here is the equation you need:

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You finish.
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3 years ago
Need help FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
vova2212 [387]

Answer:

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Step-by-step explanation:

8 0
2 years ago
Blake and his brother are participating in their school’s food drive. Blake has collected 6 1/3 pounds of food and his brother h
sergejj [24]

They will need 2 5/12 more pounds to reach their goal.

<h3>Sum and difference of fractions</h3>

Given the following information as shown:

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If their goal is to collect 14 1/2 pounds of food by the end of the month, the remaining food they need to collect will be expressed as:

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y = 174-145/12

y = 29/12

y = 2 5/12

Hence they will need 2 5/12 more pounds to reach their goal.

Learn more on sum and difference of fractions here:  brainly.com/question/24205483

5 0
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Four hundred people were asked whether gun laws should be more stringent. three hundred said "yes," and 100 said "no." the point
Anna11 [10]
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Therefore, the probability a person will respond with a no is 0.25.

Hope I helped :)
8 0
3 years ago
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