Question

Use a calculator to solve the equation. Check your solution.

$-9.39-3.4d=-1.1d+11.08$

Short answer

The solution for the equation is $d=-8.9$

Step-by-step solution

Step-1 – Given

The given equation is $-9.39-3.4d=-1.1d+11.08$.

Step-2 – To determine

We have to solve the equation using a calculator

Step-3 – Calculation

We first make one side equal to 0.

$\begin{array}{l}-9.39-3.4d=-1.1d+11.08\\ -9.39-3.4d-11.08=-1.1d+11.08-11.08\text{[Subtract11.08fromeachsides]}\\ -20.47-3.4d=-1.1d\text{[Simplify]}\\ -20.47-3.4d+1.1d=-1.1d+1.1d\text{[Add}1.1d\text{fromeachsides]}\\ -20.47-2.3d=0\text{[Simplify]}\end{array}$

Then we add 20.47 to both sides

So, we get: $-2.3d=20.47$

Then divide both sides by $-2.3$

$\begin{array}{l}\frac{-2.3d}{-2.3}=\frac{20.47}{-2.3}\\ d=-8.9\end{array}$

So the solution of the equation is $d=-8.9$