3 years ago

The product of a number and -3 increased by 8 is 20

Mathematics

1 answer:

Roman55 [17]3 years ago

8 0

Answer:

The answer would be -4.

Step-by-step explanation:

This is because the product of a number and -3 must be 8 less than 20, which is 12. And -3 times -4 is 12.

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Answer:

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3 years ago

Mal always solve the equation of negative 5 x minus 16 equals 8, his work is shown below identify the era where it was made step

Digiron [165]

Given:

The equation is

$-5x-16=8$

To find:

The error and correct solution.

Solution:

We have,

$-5x-16=8$

Add 16 on both sides.

$-5x-16+16=8+16$

$-5x=24$

Divide both sides by -5.

$\dfrac{-5x}{-5}=\dfrac{24}{-5}$

$x=-\dfrac{24}{5}$

Third step is incorrect because he divide the equation by 5 instead of -5.

Therefore, the correct solution is $x=-\dfrac{24}{5}$ .

3 0

3 years ago