Question

Question
What is the value of u?

6.4u−5.1u=−3.25

Enter your answer as a decimal in the box.

u =

Answer 1

To solve the equation \( 6.4u - 5.1u = -3.25 \), we first combine like terms on the left side.

Combine the terms involving \( u \):

\[
6.4u - 5.1u = (6.4 - 5.1)u = 1.3u
\]

Now we can rewrite the equation:

\[
1.3u = -3.25
\]

Next, to solve for \( u \), divide both sides of the equation by \( 1.3 \):

\[
u = \frac{-3.25}{1.3}
\]

Now, calculating the value:

\[
u = -2.5
\]

Thus, the value of \( u \) is:

\[
\boxed{-2.5}
\]