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Stels [109]
3 years ago
13

-5(-x - 1) + 4x – 1= 49 solve for x

Mathematics
2 answers:
Anton [14]3 years ago
4 0

Answer:

x=5

Step-by-step explanation:

-5(-x - 1) + 4x – 1= 49

Distribute

5x +5 +4x -1 = 49

Combine like terms

9x +4 = 49

Subtract 4 from each side

9x+4-4 = 49-4

9x = 45

Divide by 9

9x/9 =45/9

x = 5

Arisa [49]3 years ago
3 0

Answer:

\huge \boxed{x=5}

Step-by-step explanation:

{\Large -5(-x - 1) + 4x -1= 49}

Expand brackets.

5x+5+ 4x -1= 49

Combine like terms.

9x+4=49

Subtract 4 from both sides.

9x+4-4=49-4

9x=45

Divide both sides by 9.

\displaystyle \frac{9x}{9} =\frac{45}{9}

x=5

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Aleksandr [31]
= 7 2/5 - 1 4/5

= 37/5 - 9/5

= 28/5

In short, Your Answer would be: 28/5 or 5 3/5

Hope this helps!
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3 years ago
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Dada a função do 1 grau + (x) = 1 - 5,o valor de f (0)
Serga [27]

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7 0
3 years ago
What is the area of the yellow square?The area of the green square is 9 ft2. The area of the red square is 16 ft2.
joja [24]
Well abnormal square would have four equal sides therefore for the firemen square since it's 9 ft^2 then u square root it and u get 3 that means each side in that green square is 3 now for the red one with 16ft^2 it would be the same consept u would square root 16 which u would get 4 now the two legs are 3 and four now u are missing the hypotenuse at c thus u use pythogerom theorom I don't know how to spell it so don't complain! You would do 3^2+4^2=c^2 which would result to 9+16=c^2. From there u would add and you would get 25 =c^2 and the reverse property of square would be square root it's that radical symbol if u remember so radical 25=5. We are still not finished we have to find the area and since we are working with normal squares where each sides ar eewual then u do 5*5 u get 25!
Now don't forget to write ft2 because then u will get it wrong
And don't be a lazy bum and try rechecking my work because I did it all in my head ok it's 12 o'clock a.m.
Peace
7 0
3 years ago
Read 2 more answers
The air pressure inside Jason's bike tires decreases by about 6% each week. The original pressure was 45 pounds per square inch
Fudgin [204]
Lets do this week by week 
beginning pressure 45 pounds 
end of week 1 
45 *.06 = 2.7
45 - 2.7 = 42.3
end of week 2 
42.3 * .06 = 2.538
42.3 - 2.538 = 39.762
end of week 3 
39.762 *.06 = 2.38
39.762 -  2.38 = 37.37
end of week 4
37.37* .06 = 2.2425
37.37628 - 2.2425= 35.12
end of week 5
35.12 * .06 = 2.107
35.12 - 2.107 = 33.012
end of week 6 
33.012* .06 = 1.98
33.012 - 1.98 =31.03

Here is the fast way to get to this answer. 
do 1-.06 = .94

then do 
45(.94)(.94)(.94)(.94)(.94)(.94)  = 31.04 


8 0
3 years ago
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