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vodka [1.7K]
3 years ago
8

What is the reason for each step in the solution of the equation? 18−2x=4x

Mathematics
2 answers:
Gekata [30.6K]3 years ago
6 0
You want to get all the x's on one side of the equation so add 2x to both sides of the equation. 4x + 2x = 6x. now you want to get the x by itself so dived both sides of the equation by 6. 18 = 6x, 18/6 = x, x = 3 
Reika [66]3 years ago
3 0
In order to solve an equation for a certain variable, you should isolate that variable on one side of the equation and leave all the other terms on the other side on the equation.
The, you solve to get the value of the variable.

The equation we have here is:
<span>18−2x=4x
First, we need to isolate the terms containing the "x" on one side of the equation. To do this, we will add 2x to both sides of the equation:
</span><span>18−2x+2x=4x+2x
18 = 6x
Now, we need to get the value of the "x". To do this, we will simply divide both sides of the equation by 6:
18/6 = 6x/6
3 = x .............> This is the solution of the equation</span>
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4 0
2 years ago
What is the present value of $4,900 per year at a discount rate of 10 percent if the first payment is received 6 years from now
Nesterboy [21]

Answer:

17640

Step-by-step explanation:

at a discount of 10% per year $4900 is equal to $490 per year

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4 0
3 years ago
Solve the following problems. Reduce your answers to their simplest form. a. 13⁄41 + 27⁄82 b. 3 5⁄24 + 6 7⁄24 + 4 9⁄24 c. 5 2⁄3
KATRIN_1 [288]
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3 5/24 + 6 7/24 + 4 9/24 = 13 20/24 = 13 5/6

</span><span>5 2⁄3 + 29⁄69 + 6 21⁄23 = 5 46/69 + 29/69 + 6 63/69 = 11 138/69 = 13
</span>
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</span><span>6 – 7⁄15 = 5 15/15 - 7/15 = 5 6/15

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</span>
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4 0
3 years ago
Read 2 more answers
Food pill: $9<br> Sales tax:6%<br> Tip:20%<br><br> Can you help me please
steposvetlana [31]

Answer: $11.45

Step-by-step explanation:

Food pill: $9

Tax: 6%

Tip: 20%

x=(9)+(9)(0.06)+[(9)+(9)(0.06)](0.20)\\x=11.45

3 0
3 years ago
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