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vekshin1
3 years ago
13

Solve the following: -3(x - 8) + 7x = 12 Please explain!

Mathematics
1 answer:
natali 33 [55]3 years ago
7 0

Answer:  -3

Step-by-step explanation:

First... Distribute the -3 into x and -8. You'll have -3x + 24 + 7x = 12

Next... Subtract 24 on both sides (-3x + 24 - 24 + 7x = 12 - 24)

                                 -3x + 7x = -12

Add like terms to get 4x = -12

Finally.. you divide 4 on both and you have...

x = -3

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Solve each single-step equation. Show your work. -15+n=-9
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Answer:

6

Step-by-step explanation:

-15+6 means it goes minus basically its 15-6(-15+6)=-9

3 0
2 years ago
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Identify the phase shift of each function. Describe each phase shift ( use a phrase like 3 units to the left):
Rus_ich [418]

Answer:

The phase shift:

1 unit to the right and 1 unit up

Step-by-step explanation:

∵ y = 1 + sin2(x - 1)

∴ y = 1 + sin(2x - 2)

∵ y = Sin(Bx - C) + D

∵ The vertical shift is D

∴ The horizontal shift is -C/B

∴ The vertical shift is 1 unit up

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3 years ago
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Devaughn is 15 years younger than Sydney. The sum of their ages is 37 . What is Sydney's age?
posledela
Hi,
Let Sydney's age be x.
Devaughn=(x-15)
x+(x-15)=37
x+x-15=37
2x-15=37
2x=37+15
2x=52
x=52/2
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Sydney is 26 years old.
Hope this Helps you.
7 0
3 years ago
What’s the interger of -(-10)
Lorico [155]

Answer:

10

Step-by-step explanation:

<u>A negative number with another negative sign is practically a positive number. </u>

Example:  -(-4)

-(-4)

-1 * -4

4

Question:  -(-10)

-(-10)

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<em>10 </em>

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2 years ago
Find M&lt;1, M&lt;2, M&lt;3, M&lt;4, M&lt;5
Leokris [45]

Answer:

Step-by-step explanation:

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m∠1 = 180° - 52°

m∠1 = 128°

m∠3 = 47° [Alternate interior angles]

m∠5 + 52° + 47° = 180° [Sum of linear angles is 180°]

m∠5 = 180° - 99°

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m∠4 + 47° = 180° [Sum of consecutive interior angles is 180°]

m∠4 = 180° - 47°

m∠4 = 137°

6 0
2 years ago
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