9+2c+12=c+3(9)+4

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Solution for 9+2c+12=c+3(9)+4 equation:


Simplifying
9 + 2c + 12 = c + 3(9) + 4

Reorder the terms:
9 + 12 + 2c = c + 3(9) + 4

Combine like terms: 9 + 12 = 21
21 + 2c = c + 3(9) + 4

Multiply 3 * 9
21 + 2c = c + 27 + 4

Reorder the terms:
21 + 2c = 27 + 4 + c

Combine like terms: 27 + 4 = 31
21 + 2c = 31 + c

Solving
21 + 2c = 31 + c

Solving for variable 'c'.

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

Add '-1c' to each side of the equation.
21 + 2c + -1c = 31 + c + -1c

Combine like terms: 2c + -1c = 1c
21 + 1c = 31 + c + -1c

Combine like terms: c + -1c = 0
21 + 1c = 31 + 0
21 + 1c = 31

Add '-21' to each side of the equation.
21 + -21 + 1c = 31 + -21

Combine like terms: 21 + -21 = 0
0 + 1c = 31 + -21
1c = 31 + -21

Combine like terms: 31 + -21 = 10
1c = 10

Divide each side by '1'.
c = 10

Simplifying
c = 10

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