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IrinaVladis [17]
2 years ago
8

7.4: How do You Know?

Mathematics
1 answer:
nataly862011 [7]2 years ago
4 0

Answer:

I am not completely sure

Step-by-step explanation:

sorry

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Is -2(3x-7) equivalent to 19+12x-5-6x? YES or NO???
nadezda [96]

Answer:





6. 6x-21=33+9x 7. -15x=-5(3x+7) 8. 16x-19=113-6x 9. -19x-34=56-x 10. -6(4x+3)=6(4x-3)?

6. 6x-21 = 33 +9x

+21 + 21

6x = 54 + 9x

-9x -9x

-3x = 54

/3 /3

x = -18

7. -15x = -5(3x+7)

First multiply the -5 to the other numbers.

-15x = -15x - 35

0x = -35

7 is impossible I believe.

8. 16x-19 = 113-6x

+6 +6

22x - 19 = 113

+ 19 +19

22x = 132

/22 /22

x = 6

9. -19x - 34 = 56 - x

+19x +19x

-34 = 56 + 18x

-56 -56

-90 = 18x

/18 /18

x = -5

10. -6(4x+3) = 6[4x-3]

-24x - 18 = 24x - 18

+18 +18

-24x= 24x

x = 0, since only zero can make the equation true.

7 0
3 years ago
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Jetta is 2 years older than 1/3 merciless age and me is 4 years younger than 2 times Justin's age Define a variable and write an
Tamiku [17]

Answer:

2+24x+12

Step-by-step explanation:


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What set of integers greater than -6 and less than 3
velikii [3]

Answer:

(-6,-5,-4,-3,-2,-1,0,1,2)

Step-by-step explanation:

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2 years ago
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