Let's solve this equation step by step:
X - 0.4X - (X - 0.4X) * 13/27 = 28Simplify the equation:
0.6X - 0.6X * 13/27 = 28Combine like terms:
0.6X - 0.6X 13/27 = 280.6X - 0.6X 13/27 = 280.6X(1 - 13/27) = 280.6X(27/27 - 13/27) = 280.6X(14/27) = 280.6X 14/27 = 280.6X = 28 27/140.6X = 54
Now, we solve for X:
X = 54 / 0.6X = 90
Therefore, the solution to the equation X - 0.4X - (X - 0.4X) * 13/27 = 28 is X = 90.
Let's solve this equation step by step:
X - 0.4X - (X - 0.4X) * 13/27 = 28
Simplify the equation:
0.6X - 0.6X * 13/27 = 28
Combine like terms:
0.6X - 0.6X 13/27 = 28
0.6X - 0.6X 13/27 = 28
0.6X(1 - 13/27) = 28
0.6X(27/27 - 13/27) = 28
0.6X(14/27) = 28
0.6X 14/27 = 28
0.6X = 28 27/14
0.6X = 54
Now, we solve for X:
X = 54 / 0.6
X = 90
Therefore, the solution to the equation X - 0.4X - (X - 0.4X) * 13/27 = 28 is X = 90.