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Ilia_Sergeevich [38]
3 years ago
15

-3x + 7x-8 = 34 + 9x - 2

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

Answer:

-8

Step-by-step explanation:

First combine like terms:

4x-8=32+9x

-40=5x

-8=x

padilas [110]3 years ago
7 0

Answer:

X= -8

Step-by-step explanation:

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slega [8]
Find the smallest number that is divisible by 2, 3, 4, 5, 6 and add 1.
We need the least common multiple of 2, 3, 4, 5, 6.

2 = 2
3 = 3
4 = 2^2
5 = 5
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LCM = product of common and not common prime factors with larger exponent.

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To always have a remainder of 1, you need of add 1 to 60.

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Check:
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3 years ago
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5 0
3 years ago
Factorise 2xsquared X 7x +3
Monica [59]

Answer:

 (-2x - 1) • (x + 3)

Step-by-step explanation:

3.2     Factoring  2x2 + 7x + 3

The first term is,  2x2  its coefficient is  2 .

The middle term is,  +7x  its coefficient is  7 .

The last term, "the constant", is  +3

Step-1 : Multiply the coefficient of the first term by the constant   2 • 3 = 6

Step-2 : Find two factors of  6  whose sum equals the coefficient of the middle term, which is   7 .

     -6    +    -1    =    -7

     -3    +    -2    =    -5

     -2    +    -3    =    -5

     -1    +    -6    =    -7

     1    +    6    =    7    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  1  and  6

                    2x2 + 1x + 6x + 3

Step-4 : Add up the first 2 terms, pulling out like factors :

                   x • (2x+1)

             Add up the last 2 terms, pulling out common factors :

                   3 • (2x+1)

Step-5 : Add up the four terms of step 4 :

                   (x+3)  •  (2x+1)

            Which is the desired factorization

5 0
2 years ago
(3-2x) divided by (1 divided by x+5) multiplied by 8
IceJOKER [234]

Answer: 8(3-2x)(x+5), -16x^2-56+120, x=-5, or x=3/2.


Step-by-step explanation:

First convert the multi fraction into multiplication: 8(3-2x)(x+5)

Then simplify: -16x^2-56+120

If you want, you can solve for x, which gets you x=-5, or x=3/2.

I hope this helps! :P

7 0
3 years ago
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