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Dennis_Churaev [7]
3 years ago
7

Substitute x=-4 into the expression 5x-x+8

Mathematics
2 answers:
Natasha2012 [34]3 years ago
5 0

Answer:

-8

Step-by-step explanation:

5(-4)-(4)+8

-20+4+8

-20+12

-8

jeyben [28]3 years ago
3 0

Answer:

(-8)

Step-by-step explanation:

Question :

5x - x + 8

First you can solve the equation simply like this.

5x - x + 8

4x + 8

Now they've given that,

x = (-4)

Now, you have to put -4 instead of x and solve the equation.

Let us solve now.

4 x + 8

4 × (-4) + 8

-16 + 8

(-8)

Hope this helps you :-)

Let me know if you have any other questions :-)

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Answer:

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Step-by-step explanation:

A irrational number can be defined as those numbers which are real but can NOT be expressed in simple fractions. The term 'irrational' means 'a number which can not be expressed in ratio of two integers', 'no ratio.'

<u>When a irrational number is expressed in decimal, the numbers keep on expanding without repeating andd without terminating, which means it keeps on expanding infinitely.</u>

For example, π (pi) is an irrational number. When it is expressed in decimals it keeps on expanding non-repeatedly and unendingly.

Another example of an irrational number is √2.

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