c+1-9-12+16=21

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Solution for c+1-9-12+16=21 equation:


Simplifying
c + 1 + -9 + -12 + 16 = 21

Reorder the terms:
1 + -9 + -12 + 16 + c = 21

Combine like terms: 1 + -9 = -8
-8 + -12 + 16 + c = 21

Combine like terms: -8 + -12 = -20
-20 + 16 + c = 21

Combine like terms: -20 + 16 = -4
-4 + c = 21

Solving
-4 + c = 21

Solving for variable 'c'.

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

Add '4' to each side of the equation.
-4 + 4 + c = 21 + 4

Combine like terms: -4 + 4 = 0
0 + c = 21 + 4
c = 21 + 4

Combine like terms: 21 + 4 = 25
c = 25

Simplifying
c = 25

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