9(9+c)=8(2+c)

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Solution for 9(9+c)=8(2+c) equation:


Simplifying
9(9 + c) = 8(2 + c)
(9 * 9 + c * 9) = 8(2 + c)
(81 + 9c) = 8(2 + c)
81 + 9c = (2 * 8 + c * 8)
81 + 9c = (16 + 8c)

Solving
81 + 9c = 16 + 8c

Solving for variable 'c'.

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

Add '-8c' to each side of the equation.
81 + 9c + -8c = 16 + 8c + -8c

Combine like terms: 9c + -8c = 1c
81 + 1c = 16 + 8c + -8c

Combine like terms: 8c + -8c = 0
81 + 1c = 16 + 0
81 + 1c = 16

Add '-81' to each side of the equation.
81 + -81 + 1c = 16 + -81

Combine like terms: 81 + -81 = 0
0 + 1c = 16 + -81
1c = 16 + -81

Combine like terms: 16 + -81 = -65
1c = -65

Divide each side by '1'.
c = -65

Simplifying
c = -65

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