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koban [17]
3 years ago
10

Explain why 13x +1 = 11x+9​

Mathematics
2 answers:
jenyasd209 [6]3 years ago
8 0

Answer:

53 = 53

Step-by-step explanation:

13x+1=11x+9           13(4)+1=11(4)+9

13x=11x+8                52+1=44+9

2x=8                          53=53

x=4

VLD [36.1K]3 years ago
5 0

Answer:

x=4

Step-by-step explanation:

13x+1 = 11x+9

13x-11x = 9-1

2x = 8

x = 4

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Describe a triangle for which the centroid, circumcenter, incenter, and orthocenter are the same point. What features of this tr
hjlf

Answer:

An equilateral triangle

Step-by-step explanation:

Because an equilateral has a feature that all sides have the same length and all angles are of the same, it does not matter from which side and peak the centroid, circumcenter, incenter and orthocenter is created, they would always end up at the same point.

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Branilest and 30 point please answer
Lynna [10]

Answer:

<em>Addition Property of Equality</em>

Step-by-step explanation:

<u>System of Equations</u>

When two equations are given and two variables are unknown in both equations, then we can solve the system in several ways.

One method consists in adding both equations term by term and eliminate one of the variables. That property is called the addition of equalities. Let's consider the equations given in the problem:

5x+4y=-2\\2x-4y=6

If we add both equations, we have

5x+4y+2x-4y=-2+6

Simplifying

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By adding both equations we managed to eliminate the variable y and could easily find the value of x

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Answer: Addition Property of Equality

7 0
3 years ago
Expand the following 5(2x-4)
Yuliya22 [10]

Answer:

x= 2

Step-by-step explanation:

5*2= 10 then add the x at the end

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then you divide both sides by 10

(10x/10)- (20/10)

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or if your rewriting it then:

(5*2x)- (5*4)=?

Hope this helped :D

8 0
3 years ago
How do i write a proof for this
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