Question

10=
−8
r
​

Answer 1

Find the value of x in the equation below. 19.8 = x + 12.7

Answer 2

Find the value of x in the equation below. x − 10.4 = 13.8

Answer 3

To solve the equation \( 10 = -8r \), you can isolate \( r \) by dividing both sides of the equation by -8:

\[
r = \frac{10}{-8}
\]

This simplifies to:

\[
r = -\frac{10}{8} = -\frac{5}{4} = -1.25
\]

So the solution is:

\[
r = -1.25
\]

Answer 4

To solve the equation \( 19.8 = x + 12.7 \), you can isolate \( x \) by subtracting \( 12.7 \) from both sides:

\[
x = 19.8 - 12.7
\]

Now, perform the subtraction:

\[
x = 7.1
\]

Thus, the value of \( x \) is \( 7.1 \).

Answer 5

To solve the equation \( x - 10.4 = 13.8 \), you can isolate \( x \) by adding \( 10.4 \) to both sides:

\[
x = 13.8 + 10.4
\]

Now, perform the addition:

\[
x = 24.2
\]

Thus, the value of \( x \) is \( 24.2 \).