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Kamila [148]
3 years ago
10

Solve the equation. Show all Work. (4 points)

Mathematics
1 answer:
Ber [7]3 years ago
7 0

Answer:

6

Step-by-step explanation:

7x + 3(-x + 6) = 42

use distributive property

7x + -3x + 18 = 42

positive + negative = negative

7x - 3x + 18 = 42

combine like terms

4x + 18 = 42

subtract 18 from both sides

4x + 18 - 18 = 42 - 18

18 is canceled out on the left side

4x + 0 = 24

4x = 24

divide both sides by 4

4x ÷ 4 = 24 ÷ 4

1x = 6

x = 6

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What’s 18/5 in the simplest form
Harlamova29_29 [7]

Answer:

3 and 3/5

Step-by-step explanation:

5 fits into 18 three times, and u have three left over so u have the whole number, 3 and then u have three left over which is the three fifths.

4 0
3 years ago
Find the value of (x + 1) in this equation.<br><br> 13(6x − 5) − x = 13 − 2(x + 1)
Mandarinka [93]

Answer: The value of x is 155/79.

Step-by-step explanation:

13(6x -5 )-x= 13 -2(x +1)

78x - 65- x = 13 -2x -2

77x -65 = 11-2x  

79x -65 =11

79x =76

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4 0
3 years ago
Jim spends 3 1/2 days a month away from home if he does this for 6 1/2 months how many days would Jim be away from home
Gelneren [198K]
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4 0
4 years ago
What is a decmil for 9/10
Dvinal [7]
9/10 is .9 as a decimal becsause anything after the decimal in the first place is like that
5 0
3 years ago
Read 2 more answers
Help with finding the area and perimeter
torisob [31]
Using the Pythagorean theorem, 12^2 + 12^2 = 288 (equal lengths of a right-angle triangle). the square root of 288 is 16.9 (could be rounded to 17).

Rounding up to 17, the perimeter (P) would be 41. Without rounding, it would be 40.9. 

Using the 17 measurement as the Base, the height would come out to 4.82. This can be used to find the Area, which comes out to being 41. 

If you would like to double check, the measurements based on the picture are: 
Sides: 12, 12, 17 
Angles: 45, 45, 90

I hope this helps!
8 0
3 years ago
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