21=0.25(X+14)+(0.1X)

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Solution for 21=0.25(X+14)+(0.1X) equation: 


Simplifying
21 = 0.25(X + 14) + (0.1X)

Reorder the terms:
21 = 0.25(14 + X) + (0.1X)
21 = (14 * 0.25 + X * 0.25) + (0.1X)
21 = (3.5 + 0.25X) + (0.1X)

Combine like terms: 0.25X + (0.1X) = 0.35X
21 = 3.5 + 0.35X

Solving
21 = 3.5 + 0.35X

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '-0.35X' to each side of the equation.
21 + -0.35X = 3.5 + 0.35X + -0.35X

Combine like terms: 0.35X + -0.35X = 0.00
21 + -0.35X = 3.5 + 0.00
21 + -0.35X = 3.5

Add '-21' to each side of the equation.
21 + -21 + -0.35X = 3.5 + -21

Combine like terms: 21 + -21 = 0
0 + -0.35X = 3.5 + -21
-0.35X = 3.5 + -21

Combine like terms: 3.5 + -21 = -17.5
-0.35X = -17.5

Divide each side by '-0.35'.
X = 50

Simplifying
X = 50

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