3-9c=-42

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Solution for 3-9c=-42 equation: 


Simplifying
3 + -9c = -42

Solving
3 + -9c = -42

Solving for variable 'c'.

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

Add '-3' to each side of the equation.
3 + -3 + -9c = -42 + -3

Combine like terms: 3 + -3 = 0
0 + -9c = -42 + -3
-9c = -42 + -3

Combine like terms: -42 + -3 = -45
-9c = -45

Divide each side by '-9'.
c = 5

Simplifying
c = 5

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