.40C+(.50)(500-C)=220.00

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Solution for .40C+(.50)(500-C)=220.00 equation:


Simplifying
0.40C + (0.50)(500 + -1C) = 220.00
0.40C + (500 * 0.50 + -1C * 0.50) = 220.00
0.40C + (250 + -0.5C) = 220.00

Reorder the terms:
250 + 0.40C + -0.5C = 220.00

Combine like terms: 0.40C + -0.5C = -0.1C
250 + -0.1C = 220.00

Solving
250 + -0.1C = 220.00

Solving for variable 'C'.

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

Add '-250' to each side of the equation.
250 + -250 + -0.1C = 220.00 + -250

Combine like terms: 250 + -250 = 0
0 + -0.1C = 220.00 + -250
-0.1C = 220.00 + -250

Combine like terms: 220.00 + -250 = -30
-0.1C = -30

Divide each side by '-0.1'.
C = 300

Simplifying
C = 300

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