1c-21+3=15

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Solution for 1c-21+3=15 equation:


Simplifying
1c + -21 + 3 = 15

Reorder the terms:
-21 + 3 + 1c = 15

Combine like terms: -21 + 3 = -18
-18 + 1c = 15

Solving
-18 + 1c = 15

Solving for variable 'c'.

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

Add '18' to each side of the equation.
-18 + 18 + 1c = 15 + 18

Combine like terms: -18 + 18 = 0
0 + 1c = 15 + 18
1c = 15 + 18

Combine like terms: 15 + 18 = 33
1c = 33

Divide each side by '1'.
c = 33

Simplifying
c = 33

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