Question

Is the following always, sometimes, or never true?

14 + 3x – 7 = 7x + 7 – 4x

A, Always
B. sometimes
C. never

Answer 1

For this case we have the following expression:

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To answer the question, what we must do is rewrite both sides of the equation.

For this, we apply the associative property.

We have then:

`image`

Rewriting we have:

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Since both sides of the equation are equal, then the expression is always true.

Answer:

A) Always

Answer 2

Out of the choices given, the following equation " 14+3x-7x+4-4x" is always true. The correct answer will be A.