9(c-1)-7(2c+1)=5

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Solution for 9(c-1)-7(2c+1)=5 equation: 


Simplifying
9(c + -1) + -7(2c + 1) = 5

Reorder the terms:
9(-1 + c) + -7(2c + 1) = 5
(-1 * 9 + c * 9) + -7(2c + 1) = 5
(-9 + 9c) + -7(2c + 1) = 5

Reorder the terms:
-9 + 9c + -7(1 + 2c) = 5
-9 + 9c + (1 * -7 + 2c * -7) = 5
-9 + 9c + (-7 + -14c) = 5

Reorder the terms:
-9 + -7 + 9c + -14c = 5

Combine like terms: -9 + -7 = -16
-16 + 9c + -14c = 5

Combine like terms: 9c + -14c = -5c
-16 + -5c = 5

Solving
-16 + -5c = 5

Solving for variable 'c'.

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

Add '16' to each side of the equation.
-16 + 16 + -5c = 5 + 16

Combine like terms: -16 + 16 = 0
0 + -5c = 5 + 16
-5c = 5 + 16

Combine like terms: 5 + 16 = 21
-5c = 21

Divide each side by '-5'.
c = -4.2

Simplifying
c = -4.2

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