Question Evaluate $7x-9$ when $x=\frac{1}{7}$ and simplify the expression.

Studdy Solution

STEP 1

Assumptions1. The expression is $7x -9$ . The value of $x$ is $\frac{1}{7}$

STEP 2

We need to substitute the given value of $x$ into the expression.
$7x -9 =7\left(\frac{1}{7}\right) -9$

STEP 3

Now, let's simplify the expression by multiplying $7$ and $\frac{1}{7}$ .
$7x -9 =1 -9$

STEP 4

Finally, subtract $9$ from $1$ to get the result.
$7x -9 =1 -9 = -8$ So, when $x = \frac{1}{7}$ , $7x -9 = -8$ .

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