Question

−5.5(d−2)=−12.1
what is the value of d?

Answer 1

-5.5(d - 2) = -12.1
-5.5d + 11 = -12.1
5.5d = 11 + 12.1
d = 23.1 ÷ 5.5
d = 4.2

Answer 2

Answer: The required value of d is 4.2.

Step-by-step explanation: We are given to find the value of d from the following equation :

`-5.5(d-2)=-12.1~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)`

To find the value of d, we are to solve the given equation (i).

The solution of equation (i) is as follows :

`-5.5(d-2)=-12.1\\\\\Rightarrow -5.5d+11=-12.1\\\\\Rightarrow -5.5d=-12.1-11\\\\\Rightarrow -5.5d=-23.1\\\\\Rightarrow d=(-23.1)/(-5.5)\\\\\Rightarrow d=4.2.`

Thus, the required value of d is 4.2.