Question

When solving negative one over five (x − 25) = 7, what is the correct sequence of operations?

Multiply each side by negative one over five , add 25 to each side
Multiply each side by 5, subtract 25 from each side
Multiply each side by negative one over five , subtract 25 from each side
Multiply each side by −5, add 25 to each side

Answer 1

@Michele_Laino

Answer 2

we have to multiply both sides by \(-5\), so we can write this:
\[\left( { - 5} \right) \cdot \left( { - \frac{1}{5}} \right) \cdot \left( {x - 25} \right) = 7 \cdot \left( { - 5} \right)\]

Answer 3

so it would be B

Answer 4

since:
\[\left( { - 5} \right) \cdot \left( { - \frac{1}{5}} \right) = 1\]

Answer 5

please note that I have multiplied by \(-5\)

Answer 6

So D

Answer 7

correct!