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Inessa05 [86]
3 years ago
7

Solve x − 2y = 3 for x.

Mathematics
2 answers:
Lisa [10]3 years ago
8 0

Answer:

x = 3+2y

Step-by-step explanation:

Given : x -2y = 3

To Find : Solve for x

Solution :

x -2y = 3

Now we are supposed to find the value of x

So, take 2y to the right hand side

So, Equation becomes:x = 3+2y

So, The value of x in terms of y x = 3+2y

Hence x = 3+2y

trapecia [35]3 years ago
7 0

Answer:

x = 3 + 2y

Step-by-step explanation:

Given

x - 2y = 3 ( Isolate x on the left side by adding 2y to both sides )

x = 3 + 2y

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I dont really know what ur talking about
7 0
3 years ago
Is f(x)=3x5^2x-3 an exponential function? If so, write it in the form f(x)=ab^x
Anna11 [10]

Answer:

f(x)=\frac{3}{125} * 25^x

Step-by-step explanation:

Given

f(x)=3*5^{2x-3}

Required

To determine if it is an exponential function, we have to write in form of

f(x) = ab^x

If we're able to do so, then the function is an exponential function.

If otherwise, then it is not

f(x)=3*5^{2x-3}

Apply Law of indices

f(x)=3*\frac{5^{2x}}{5^3}

Express 5^3 as 125

f(x)=3*\frac{5^{2x}}{125}

Factorize the exponent of 5

f(x)=3*\frac{5^{(2)x}}{125}

Express 5^2 as 25

f(x)=3*\frac{25^x}{125}

This can be rewritten as:

f(x)=\frac{3}{125} * 25^x

By comparing the above to f(x) = ab^x

We have that

a = \frac{3}{125}

b^x = 25^x

Since, we've be able to express the function as f(x) = ab^x

Then, f(x)=3*5^{2x-3} is an exponential function

8 0
3 years ago
Carly is saving money. Last month, she saved $120. This month, Carly saved 30% percent more than last month. How much money did
Drupady [299]

Answer:156

Step-by-step explanation:

8 0
3 years ago
What’s 10x - 4 - 7/2x - 3/4(2x - 3) in its simplest form?
lyudmila [28]
10x-4-7/2x-3/4(2x-3)
6 1/2 -4 - 1 1/2x - 2 1/4
2 1/2- 1 1/2x- 2 1/4
1/4-1 1/2x
decimal form:
6.5-4-1.5x-2.25
2.5-1.5x-2.25
0.25-1.5x
7 0
3 years ago
If two expressions, 2x + 8 and 2 (x + 2) + k are equivalent, what is the value of k? Enter the value in the box.
Nitella [24]
2x+8=2(x+2)+k
2x+8=2x+4+k
k=4

Therefore k= 4, Hope this helps!! :)
5 0
3 years ago
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