21-8c=9(5c+3)

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Solution for 21-8c=9(5c+3) equation:


Simplifying
21 + -8c = 9(5c + 3)

Reorder the terms:
21 + -8c = 9(3 + 5c)
21 + -8c = (3 * 9 + 5c * 9)
21 + -8c = (27 + 45c)

Solving
21 + -8c = 27 + 45c

Solving for variable 'c'.

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

Add '-45c' to each side of the equation.
21 + -8c + -45c = 27 + 45c + -45c

Combine like terms: -8c + -45c = -53c
21 + -53c = 27 + 45c + -45c

Combine like terms: 45c + -45c = 0
21 + -53c = 27 + 0
21 + -53c = 27

Add '-21' to each side of the equation.
21 + -21 + -53c = 27 + -21

Combine like terms: 21 + -21 = 0
0 + -53c = 27 + -21
-53c = 27 + -21

Combine like terms: 27 + -21 = 6
-53c = 6

Divide each side by '-53'.
c = -0.1132075472

Simplifying
c = -0.1132075472

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