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Neko [114]
3 years ago
15

Enter the value for x that makes the equation 3x – 5 = 7x - 21 true.

Mathematics
2 answers:
Nitella [24]3 years ago
8 0

Answer:

4

Step-by-step explanation:

3x-5=7x-21

3x-7x=5-21

-4x=-16 ( divide by -4 both sides)

x= 4

AlexFokin [52]3 years ago
8 0
Answer:4


Step by step solution:

3x-5=7x-21
-5=4x-21
16=4x
x=4
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Part A: Solve the equation 4(x + 5) = 9x + 4x − 34, and show your work. (5 points)
nasty-shy [4]

The value of x in the equation 4(x + 5) = 9x + 4x − 34 is 6 after solving and applying properties.

<h3>What is a linear equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have equation:

4(x + 5) = 9x + 4x − 34  (Given)

4x +20 = 9x + 4x − 34    (Distributive Property)

4x +20 +34 -4x = 9x + 4x − 34 + 34 -4x   (Subtraction Property of Equality)

54 = 9x + 4x − 34 + 34 -4x  (Addition Property of Equality)

54 = 9x  (Combine Like Terms)

x = 54/9   (Division Property of Equality)

x = 6

Thus, the value of x in the equation 4(x + 5) = 9x + 4x − 34 is 6 after solving and applying properties.

Learn more about the linear equation here:

brainly.com/question/11897796

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3 0
2 years ago
Determine how much money you will have after 8 years if you invest 4,000$ at 7% compounded monthly
Solnce55 [7]
You would get $26,880.
0.07*4000= 280; so $280 are added every month
There are 96 months in 8 years, so multiply 280*96 which =26,880
7 0
3 years ago
To which subsets does 15/5 belong?
Alexus [3.1K]

Answer:

Whole, natural, integer, rational, real

Step-by-step explanation:

15/5 can be rewritten as 3.

7 0
3 years ago
(b12)3<br> The simplified expression is
AlexFokin [52]

Answer:

b^36

Step-by-step explanation:

8 0
3 years ago
How do I work out -5(-8)
slava [35]
You have to simplify like this (-5)(-8)=40
5 0
3 years ago
Read 2 more answers
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