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3 years ago

If 3X + 2 equals 11, could X equal 5

Mathematics

2 answers:

netineya [11]3 years ago

8 0

Hey there!

We need to find the one value of x that, when plugged in, will equal 11.

You have asked if x can equal 5. Let's plug it in and see if it works.

3(5)+2=11

15+2=11

17=11

You can see that this statement is false. So, what can we do to find the right answer.

We need to isolate x so we can see what it equals. To do this, we will use inverse operations.

3x+2-2=11-2

3x=9

3x/3=9/3

x=3

If we plug in 3, you will see that it does equal 11, making the equation true.

I hope this helps!

Norma-Jean [14]3 years ago

4 0

Answer:

No because 3(5) +2= 17

3*5=15

15+2= 17

Step-by-step explanation:

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3 years ago

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3 years ago

Is it necessary to have a common denominator when you multiply two fractions? Explain.

Softa [21]

It is not necessary to have a common denominator when you multiply two fractions

<h3>How to determine the true statement?</h3>

The statement is about the relationship between the denominator of fractions when they are multiplied

Take for instance, we have the following fractions

a/b and x/y

In the above fractions, we have

Numerator = a and x

Denominator = b and y

Where b and y do not have the same value

When they are multiplied, we have

Product = ax/by

The denominators do not have the same value

And we were able to calculate the product

This means that the fraction denominator do not have to be common