4=2c-9

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Solution for 4=2c-9 equation:


Simplifying
4 = 2c + -9

Reorder the terms:
4 = -9 + 2c

Solving
4 = -9 + 2c

Solving for variable 'c'.

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

Add '-2c' to each side of the equation.
4 + -2c = -9 + 2c + -2c

Combine like terms: 2c + -2c = 0
4 + -2c = -9 + 0
4 + -2c = -9

Add '-4' to each side of the equation.
4 + -4 + -2c = -9 + -4

Combine like terms: 4 + -4 = 0
0 + -2c = -9 + -4
-2c = -9 + -4

Combine like terms: -9 + -4 = -13
-2c = -13

Divide each side by '-2'.
c = 6.5

Simplifying
c = 6.5

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