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Vanyuwa [196]
2 years ago
15

(-3x+4)+(x-9) help please.​

Mathematics
2 answers:
Vera_Pavlovna [14]2 years ago
7 0

Answer:

−2−5

Step-by-step explanation:

(-3x+4)+(x-9)

−3x+4+x−9

Subtract

−3x+<u>4</u>+x<u>−9</u>

-3<u>−5</u>+

Combine terms

<u>−3x</u>−5+<u>x</u>

<u>−2</u>−5

Mumz [18]2 years ago
3 0

Answer:

  1. - 1 · (2×±5)

Step-by-step explanation:

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X + ky = 1
Marina CMI [18]
X + k y = 1
k x + y = 1  / * ( - k )
----------------
      x + k y = 1
- k² x - k y = - k
--------------------
x - k² x = 1 - k
x ( 1 - k² ) = 1 - k
x = ( 1 - k ) / ( 1 - k² ) = ( 1 - k ) / ( 1 - k ) ( 1 + k )
y = 1 - k( 1 - k )/( 1 - k² )
y = ( 1 - k ) / ( 1 - k² ) = ( 1 - k ) / ( 1 - k ) ( 1 + k )
a ) For  k = - 1 this system has no solution.
b ) For k ≠ - 1 and k ≠ 1, the system has unique solution:
( x , y ) = ( 1/ (1 + k) ,  1/( 1 + k ) ).
c ) For k = 1, there are infinitely many solutions.

3 0
3 years ago
Evaluate −3w − 6p for w=2 and p = −7
kap26 [50]

-3w-6p when w=2 and p=-7

-3(2)-6(-7)

= -6 + 42

= 36

7 0
3 years ago
Read 2 more answers
What is 1 and 1/4 minus 3/8?
matrenka [14]

Answer: 7/8

Step-by-step explanation:

You can change all the fractions to have equivalent denominators.

The Least Common Denominator of 1 1/4 and 3/8 is 8. Now we can change the fractions.

1 1/4 = 1 2/8 = 10/8.

3/8 = 3/8.

Now we can subtract. Subtract the numerators of the first fraction from the numerators of the second fraction, and the denominators oft he first fraction to the denominators of the second fraction.

10/8 - 3/8 = 7/8.

Therefore, 1 1/4 - 3/8 = 7/8; the fourth answer.

6 0
3 years ago
Pls Help anyone. Ill will give brainliest and you will get 45 points pls anyone pls ㏒㏒㏒㏒㏒㏒
frosja888 [35]
The answer is E: (b-c)(a+c)
3 0
3 years ago
A photocopy machine can print 405 copies in 9 minutes. what is the unit rate the machine can produce in 1 minute
Zolol [24]

Answer:45

Step-by-step explanation: divide 405 by 9

3 0
3 years ago
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