QueenHearts
Answered

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Answer to these 2 questions pls fast!

Answer To These 2 Questions Pls Fast class=

Sagot :

reinhard10158

Step-by-step explanation:

17.

an addition is commutative. that means the sequence of the arguments of the operation does not matter (as long as the arguments are truly the same).

7x + 1 = 1 + 7x

1 = 1

0 = 0

is all true for any and every value of x.

so, yes, that's how I know that the expressions are equivalent.

18.

no, the case of 17 does not apply, because she changed the arguments of the addition (not just the sequence).

to check :

7x + 1 = 1x + 7

6x = 6

x = 1

this is true for exactly one value of x. but definitely not fit every value of x.

and so, these 2 existing are not equivalent. they are 2 different functions with a crossing point.

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