21-c+36=51

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Solution for 21-c+36=51 equation:


Simplifying
21 + -1c + 36 = 51

Reorder the terms:
21 + 36 + -1c = 51

Combine like terms: 21 + 36 = 57
57 + -1c = 51

Solving
57 + -1c = 51

Solving for variable 'c'.

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

Add '-57' to each side of the equation.
57 + -57 + -1c = 51 + -57

Combine like terms: 57 + -57 = 0
0 + -1c = 51 + -57
-1c = 51 + -57

Combine like terms: 51 + -57 = -6
-1c = -6

Divide each side by '-1'.
c = 6

Simplifying
c = 6

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