An equation is formed of two equal expressions. The correct options are C, D, and E.
<h3>What is an equation?</h3>
An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
The value of x in the given equation is,
![\dfrac35 (30x-15) = 72\\\\(6x - 3) = 72\\\\6x -3 = \dfrac{72}3\\\\6x = 24 + 3\\\\x = 4.5](https://tex.z-dn.net/?f=%5Cdfrac35%20%2830x-15%29%20%3D%2072%5C%5C%5C%5C%286x%20-%203%29%20%3D%2072%5C%5C%5C%5C6x%20-3%20%3D%20%5Cdfrac%7B72%7D3%5C%5C%5C%5C6x%20%3D%2024%20%2B%203%5C%5C%5C%5Cx%20%3D%204.5)
Substitute the value of x in other option to check if the equations are equal are not. Therefore, the options can be written as,
A.) 18x - 15 = 72
18(4.5) - 15 = 66
Thus, this will not return the same value.
B.) 50x - 25 = 72
50(4.5) - 25 = 200
Thus, this will not return the same value.
C.) 18x - 9 = 72
18(4.5) - 9 = 72
Thus, this will return the same value.
D.) 3(6x - 3) = 72
3[6(4.5) - 3] = 72
Thus, this will return the same value.
E.) x = 4.5
Thus, this will return the same value.
Hence, the correct options are C, D, and E.
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