How do you translate word phrases to algebraic expressions: four times a number decreased one is -29?

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Answer 1 · 2017-02-27T23:37:28

Se the entire translation process below:

First, let's call "a number": $n$ $n$

Then, for "four times a number" we can write:

$4 \times n$ $4 xx n$ or $4 \cdot n$ $4 * n$ or $4 n$ $4n$

This expression "decreased by one" means to subtract one so we can write:

$4 n - 1$ $4n - 1$

Now, this expression "is -29" means it equals -29 so we can write:

$4 n - 1 = - 29$ $4n - 1 = -29$