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Aneli [31]
3 years ago
15

What is the value of x when -3x + 7x = -12? A) -3 B) -6/5 C) 3 D)4/7

Mathematics
2 answers:
oksano4ka [1.4K]3 years ago
8 0

-3x + 7x = -12


You need to add like terms.


4x = -12


Then, you need to divide both side by 4.


x = -3


So the answer is:

A) x = -3

Katarina [22]3 years ago
4 0

Answer:

The answer is A.) -3

Step-by-step explanation:

x ( -3 + 7) = -12 use distributive property to factor out the x. So

x (4) = -12 add the like terms inside parenthesis

¼ * 4x = -12 *

1

4

multiply both side by the reciprocal of 4

x = -3 final answer

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Step-by-step explanation:

324 / 24 = 13.5  So there are 13 groups with 5 left over. Hope this helps.

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Answer:

The probability that the counter  was blue is \mathbf{\frac{2}{5}}

Step-by-step explanation:

Number of black Counters = 5

Number of blue Counters = 4

Number of white Counters = 1

We need to write down the probability that the counter  was blue.​

First find Total Counters

Total Counters = Number of black Counters + Number of blue Counters + Number of white Counters

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Now, we need to find probability that the counter taken was blue

The formula used is:

Probability= \frac{Number\:of\:favourable\:outcomes}{Total\:outcomes}

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Probability= \frac{Number\:of\:favourable\:outcomes}{Total\:outcomes}\\Probability= \frac{4}{10}\\Probability= \frac{2}{5}

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Answer:

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Step-by-step explanation:

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Answer:

Answer:

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