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3 years ago

What is the identity of 5x+3x=7x

Mathematics

2 answers:

Kryger [21]3 years ago

7 0

Answer: $x=0$

Combine like terms: 5x + 3x = 8x

$8x = 7x$

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-7x' to each side of the equation

$8x + -7x = 7x + -7x$

Combine like terms: 8x + -7x = 1x

$1x = 7x + -7x$

Combine like terms: 7x + -7x = 0

$1x = 0$

Divide each side by '1'.

$x = 0$

Gemiola [76]3 years ago

4 0

Answer:

x=0

Step-by-step explanation:

This question is actually asking us to solve for x

5x+3x=7x

So let's solve

8x=7x

To make x the subject of formula substrate 7x from both sides

8x-7x=0

X=0

Therefore the final answer for x is zero

I hope this will help you

You might be interested in

Explain how the inverse and the contopositivve of a conditional are alike and how they are different

anygoal [31]

Answer:

See explanation!

Step-by-step explanation:

The contrapositive of a conditional is similar to, yet different from, the inverse of the conditional.

The best way to explain this is to create an example. You should start by creating a conditional; you can then form the conditional's inverse and contrapositive.

Here is an example:

Conditional: If C, then D. (starting statement)

Inverse: If not C, then not D. (opposite of the conditional)

Contrapositive: If not D, then not C. (reversed opposite of the conditional)

Based on the information from the example, you can conclude:

Primary Similarity:

Both the contrapositive and the inverse are opposites of the conditional (both contain not, implying something would not happen under the given circumstances, rather than something would happen under those circumstances).

Primary Difference:

The contrapositive is a reversed version of the inverse; this causes them to most commonly have different meanings.

I am sure you could find more similarities/differences, but these were the two that stood out to me the most!

I hope this helps! :)

5 0

2 years ago

Kesha sharpened 4 colors of pencils for her teacher. She sharpened equal amounts of red and green pencils. Then she sharpened tw

Nimfa-mama [501]

Variables are taken from the first letter of the color, ex: green = g.

Given:
r = g
2r = b = y
Total =42

So then:
r+ r + 2r + 2r = 42
6r = 42
r = 7

y = 2r
y = 2(7)
14 of the 42 pencils were yellow.

7 0

3 years ago

Two sides of an acute triangle measure 5 inches and 8 inches. The length of the longest side is unknown/ What is the greatest po

skelet666 [1.2K]

The Triangle inequality theorem of a triangle says that the sum of any of the two sides of a triangle is always greater than the third side. The correct option is C.

<h3>What is the triangle inequality theorem?</h3>

The Triangle inequality theorem of a triangle says that the sum of any of the two sides of a triangle is always greater than the third side.

Suppose a, b and c are the three sides of a triangle. Thus according to this theorem,

$(a+b) > c\\(b+c) > a\\(c+a) > b$

Given the length of the two sides of the triangle, therefore, we can write the inequalities,

8 + 5 > x ⇒ 13 > x

8 + x > 5 ⇒ x > - 3

5 + x > 8 ⇒ x > 3

Now, as per the inequality the value of x can lie between 3 to 13, but as the side needs to be greatest, therefore, the value of x will be 12.

Hence, the correct option is C.

Learn more about the Triangle Inequality Theorem:

brainly.com/question/342881

#SPJ1

3 0

1 year ago

Read 2 more answers

Two out of every 5 jelly beans in a bag are green. If the bag contains 60 total jelly beans, how many green jelly beans are in t

Kazeer [188]

Answer:

Step-by-step explanation:

2/5 = 40%