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Vlada [557]
2 years ago
11

Need help with finding the value of x:-

x" alt="7x-4=3+8x" align="absmiddle" class="latex-formula">
Mathematics
2 answers:
kiruha [24]2 years ago
5 0

\underline{\boxed{\red{\:Solution}}}

==> 7x - 4 = 3 + 8x

==> 8x - 7x = -4 - 3

==> x = -7 [ Ans ]

Phoenix [80]2 years ago
3 0

The value of x in the equation is -7

<h3>What is an algebraic equation?</h3>

An algebraic equation is an expression that consists of numbers, variables with their arithmetic operations.

From the given algebraic equation:

7x - 4 = 3 + 8x

By collecting the like terms, we have:

7x - 8x = 3 + 4

-x = 7

Multiply both sides by (-) sign,

x = - 7

Learn more about algebraic equations here:

brainly.com/question/4344214

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Combine all like terms to simplify the expression.
Dvinal [7]

12x + 5 - 4x + 2x² =

= 2x² + 12x - 4x + 5 = <u>2x²</u><u> </u><u>+</u><u> </u><u>8x</u><u> </u><u>+</u><u> </u><u>5</u>

8 0
3 years ago
Explain why y^2 = x (X input, y output) is not a function.
sveta [45]

y^2 = x isn't a function because there is at least one value of x that produces multiple values of y. In fact, any x value greater than 0 yields two y values. If x = 0, then y = 0 is the only solution. ... Graphically, the equation fails the vertical line test, which is another way to determine that it is not a function.

7 0
4 years ago
Read 2 more answers
What is the greatest perfect square that is less than 55
Sunny_sXe [5.5K]

Answer:

\sqrt{49}

Step-by-step explanation:

\sqrt{49} =7

The square root of 49, which is the greatest perfect square that is less than 55.

A perfect square that is the nearest, greater perfect square to \sqrt{49} is \sqrt{64}.

There are no other perfect squares in between \sqrt{49}<em> </em>and \sqrt{64} there are only decimals.

Therefore, \sqrt{49} is your answer.

<u>Proof:</u>

<u />7^{2} =49

8^{2}=64

8 0
3 years ago
An electrician needs to cut a 49 m piece of wire into two pieces so that one piece is 5 m longer than the other piece. What is t
gulaghasi [49]

The length of the shorter wire that the electrician cuts so that the difference between those two is of 5 m is 22.5.

Given to us

An electrician needs to cut a 49 m piece of wire into two pieces so that one piece is 5 m longer than the other piece.

<h3>What are the two equal parts of the wire?</h3>

We know that the length of the wire is 49 m, therefore, to cut the wire in two equal parts divide the total length of the wire by two,

\dfrac{49}{2} = 24.5

Thus, the length of each side will be 24.5.

<h3>What is the length of the shorter piece of wire?</h3>

Since we need to cut the wire such that one side of the wire is 5 less than the other, we already know the length of the equal sides deduct (5/2) from both sides to create a difference between the length of the wire.

Length of the shorter wire = 24.5 -2.5 = 22.5

Length of the longer wire = 22.5 + 5 = 27.5

Hence, the length of the shorter wire that the electrician cuts so that the difference between those two is of 5 m is 22.5.

Learn more about Lengths:

brainly.com/question/8552546

3 0
2 years ago
Which number line represents the solution to 2.5 – 1.2x &lt; 6.5 – 3.2x?
tensa zangetsu [6.8K]
<span>2.5 – 1.2x < 6.5 – 3.2x

-1.2x + 3.2x < 6.5 - 2.5

3.2x - 1.2x < 4

2x < 4

x < 4/2

x < 2</span>
3 0
3 years ago
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