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jek_recluse [69]
2 years ago
15

Linear Equations

Mathematics
2 answers:
rjkz [21]2 years ago
7 0

Answer:

C

Step-by-step explanation:

KATRIN_1 [288]2 years ago
4 0

Answer:

C. x = -61/5

Step-by-step explanation:

7(x+5)+4(x+5) = 6x-6

  • First let's multiply the parenthesis parts.

7x+35 + 4x+20 = 6x-6

  • Combine like terms - combine all the x terms and the number terms. 7x + 4x = 11x, 35+20 = 55

11x + 55 = 6x - 6

  • Subtract 6x from both sides

5x + 55 = -6

  • Subtract 55 from both sides

5x = -61

x = -61/5

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8 0
3 years ago
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suppose the sales tax rate is 9%. if the sales tax amount is $117 on a taxable item, what is the price of the item before tax?
klemol [59]
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6 0
3 years ago
(8x2 - 4x-8)(2x +3x+2)
MArishka [77]

Answer:

(8x2−4x−8)(2x+3x+2)

=(8x2+−4x+−8)(2x+3x+2)

=(8x2)(2x)+(8x2)(3x)+(8x2)(2)+(−4x)(2x)+(−4x)(3x)+(−4x)(2)+(−8)(2x)+(−8)(3x)+(−8)(2)

=16x3+24x3+16x2−8x2−12x2−8x−16x−24x−16

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Step-by-step explanation:

8 0
3 years ago
Evaluate the expression 5k2 - 7k when k = 3
VikaD [51]

Answer:

24

Step-by-step explanation:

In this question, you have to solve by plugging in the value to the "k" variable and solve.

Solve:

5(3)^2 - 7(3)

3^2 = 9

5(9) - 7(3)

45 - 7(3)

45 - 21 = 24

Your final answer would be 24.

4 0
2 years ago
Read 2 more answers
Can some help me please and thank you
Nadya [2.5K]
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6 0
3 years ago
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