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 = 37c
21 + 37c = -27 + -45c + 45c

Combine like terms: -45c + 45c = 0
21 + 37c = -27 + 0
21 + 37c = -27

Add '-21' to each side of the equation.
21 + -21 + 37c = -27 + -21

Combine like terms: 21 + -21 = 0
0 + 37c = -27 + -21
37c = -27 + -21

Combine like terms: -27 + -21 = -48
37c = -48

Divide each side by '37'.
c = -1.297297297

Simplifying
c = -1.297297297

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