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Bingel [31]
3 years ago
9

6x-8=2+9x-1 How do you figure this program?

Mathematics
2 answers:
Gnom [1K]3 years ago
8 0
First, you try to get all your variables to one side of the equation, then solve:

-8 + 1 - 2 = 9x -6x
-9 = 3x
-9/3 = x
-3 = x
so, x = -3
Sveta_85 [38]3 years ago
8 0
You would first have to simplify the right hand side so it should look like this
"6x-8=9x+1"
Then you would have to move all of the terms containing x to the left hand side of the equation so it should look like this now
"-3x-8=1"
Now after that you would have to move all of the terms not containing x to the roght hand side of the equation so it should look like this now
"-3x=9"
Now you have to divide each term in -3x=9 by -3 to completely eliminate the fractions. So the answer should turn out as this
"x= -3
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Two times antonio's age plus three times Sarah's age equals 34. Sarah age is also five times antonio's age . How old is Sarah?
Sergio039 [100]
Let Sarah's age be s and Antonio's age be a.

According to your question,

2a + 3s = 34
s = 5a

substituting the value of s in eq. 1,

2a + 3(5a) = 34

= 2a + 15 a = 34

17a = 34

thus, a = 34/17 = 2

substituting the value of a is s,

s = 5(2)
= 10

Thus, Sarah's age is 10 years and Antonio's age is 2 years.
6 0
3 years ago
What is the percent change of 20 - 60?
Sergeeva-Olga [200]
40% is the answer ...
3 0
3 years ago
Read 2 more answers
Please solve the question.
Otrada [13]

Answer:

C

Step-by-step explanation:

(7b-4) + (-2b+a+1)

= 7b - 4 - 2b + a + 1

=7b - 2b + a - 4 + 1

=5b + a - 3

5 0
3 years ago
9. The scale on a map is 1 cm : 7 km. If two cities are 15 cm apart on the map, what is the actual distance between the cities?
Vesna [10]

Answer:

105

Step-by-step explanation:

One way to get this is by multiplying 15 by seven because the key says that one cm equals 7 km

4 0
3 years ago
Someone please help me answer this
WARRIOR [948]

The given triangle is a <em><u>Right</u></em><em><u> </u></em><em><u>angled</u></em><em><u> </u></em><em><u>triangle</u></em><em><u> </u></em>

<em><u>So</u></em><em><u>,</u></em><em><u> </u></em>by applying<em><u> Pythagoras theorem</u></em> :

here's the solution,

=》

13 {}^{2}  = b {}^{2}  + 5 {}^{2}

=》

{b}^{2}  = 13 {}^{2}  -  {5}^{2}

=》

{b}^{2}  = 169 - 25

=》

{b}^{2}  = 144

=》

b =  \sqrt{144}

=》

b = 12

value of b = 12 yards

5 0
3 years ago
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