Answer:

Step-by-step explanation:
The equation is:
a x - c = b x + d
so we subtract b x from both sides to group the terms that contain x on the left:
a x - b x - c = d
add c to both sides to isolate the terms in x on the left:
a x - b x = d + c
extract "x" as common factor on the left using distributive property backwards:
x (a - b) = d + c
divide both sides by the quantity (a - b) to isolate the "x":
x = (d + c) / (a - b)
or: 
I think that D is the answer
Given:
In a right angle triangle ABC,
, and 
To find:
The value of AC.
Solution:
In a right angle triangle,




On cross multiplication, we get



Therefore, the measure of AC is 12.304 m.
The area of a triangle is represented by 1/2 x B x H, where B = base, H = height.
In this equation, B = 4, H = 6
1/2 x 4 x 6 = 12 in^2