What is the solution of the equation −x/2.9=−3 ?

-8.7
-87
8.7
87

3 answers

To solve the equation \( -\frac{x}{2.9} = -3 \), you can start by eliminating the negative signs on both sides:

\[ \frac{x}{2.9} = 3 \]

Next, multiply both sides of the equation by \( 2.9 \) to isolate \( x \):

\[ x = 3 \times 2.9 \]

Now calculate the right side:

\[ x = 8.7 \]

So, the solution to the equation is:

\[ \boxed{8.7} \]

What is the solution of the equation 8/5x = −10 ?(1 point)
Responses

−5/8
negative Start Fraction 5 over 8 End Fraction

−1/16
negative Start Fraction 1 over 16 End Fraction

−16
negative 16

−25/4

To solve the equation \( \frac{8}{5}x = -10 \), we can start by isolating \( x \).

First, multiply both sides by \( \frac{5}{8} \) to get \( x \) alone:

\[ x = -10 \cdot \frac{5}{8} \]

Now, calculate the right side:

\[ x = -\frac{50}{8} \]

To simplify \( -\frac{50}{8} \), divide both the numerator and the denominator by 2:

\[ x = -\frac{25}{4} \]

Thus, the solution is:

\[ \boxed{-\frac{25}{4}} \]