The value of x is 17.6. She should have added 5.4 on both sides to get the correct value of x. Then the correct option is A.
<h3>What is the linear system?</h3>
A Linear system is a system in which the degree of the variable in the equation is one. It may contain one, two, or more than two variables.
Kaitlyn solved the equation for x using the following calculations.

and she did the calculation will be

The mistake she did in this equation is the plus sign is removed between the -5.4 and x. And she subtracted 5.4 from 12.2.
The correct solution of the equation is to add both sides 5.4. Then we have

More about the linear system link is given below.
brainly.com/question/20379472
To simplify an equation you should remember we can only combine the like terms first separate the terms we can put all terms with variable in one side and the constants on the other side (4/5)x+(4/3)=2x. 2x-(4/5)x=4/3. (6/5)x=4/3. X=10/9
As given Q is the midpoint of GH. SO it will divide GH in two equal parts. We can also say GQ is half of GH.
So we can write

As given GQ = 2x+3 , GH = 5x - 5




11 = x
So GQ = 2x+ 3 = 2*11 + 3 = 25
Answer:
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1 large crate = 264 Oranges
25 Crates(They meant 25 large crates) = 264 x 25 = 6600 Oranges