3 years ago

Is the expression 4 + x the same as x + 4? Explain

Mathematics

2 answers:

ipn [44]3 years ago

7 0

Answer:

Yes

Step-by-step explanation:

Becuase the order of the factors does not alter the product

artcher [175]3 years ago

5 0

Answer:

yes

Step-by-step explanation:

because of communicative property of addition

you can switch the order of numbers in an addition problem and the sum will be the same

example: 2+5=7 switched 5+2 still equals 7

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To calculate f(-4), we need to substitute x in our equation above with -4:

$f(x)=2x-4\\f(-4) = 2*(-4) - 4\\f(-4) = -8-4 = -12$

Note that 2*(-4) = -8

Answer: f(-4) = -12

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