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3 years ago

If 2(x + 3) + 7x = 3(x - 2) - 9, then x = ?

Mathematics

2 answers:

Fudgin [204]3 years ago

5 0

Answer:

x=− 7 over 2 =−3.500

Hope this helps!

pychu [463]3 years ago

5 0

Answer:

x=-3.5 or -3 1/2

Step-by-step explanation:

2(x+3)+7x=3(x-2)-9

2x+6+7x=3x-6-9

9x+6=3x-15

6x=-21

x=-3.5 or -3 1/2

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3 years ago

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3 years ago

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Fantom [35]

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The slope of the line is 3.

Step-by-step explanation:

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At midnight, the temperature was 34°F. By 6:00 a.m. it had dropped 8°, and by noon it had increased by 11°. What was the tempera

olga_2 [115]

Answer:

The temperature at noon was 37 °F.

Step-by-step explanation:

Given:

Temperature at midnight is 34 °F.

Reduction in temperature by 6:00 a.m. is 8°. So, temperature after reduction is given as the difference in temperature at midnight and morning.

Therefore, temperature by 6:00 a.m. in the morning is given as:

Reduced temperature = Midnight temperature - Reduction in temperature.

Reduced temperature = 34 °F - 8 °F = 26 °F.

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Temperature at noon = Temperature in morning + Increase in temperature.

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3 years ago

Evaluate each function.<br> k(n) = n2 – 4; Find k(–7)

Greeley [361]

Answer:

Step-by-step explanation:

hello :

k(n) = n2 – 4

k(–7)=(-7)² – 4 = 49 -4 = 45

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3 years ago