3-(-c)=7

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Solution for 3-(-c)=7 equation:


Simplifying
3 + -1(-1c) = 7

Remove parenthesis around (-1c)
3 + -1 * -1c = 7

Multiply -1 * -1
3 + 1c = 7

Solving
3 + 1c = 7

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 + 1c = 7 + -3

Combine like terms: 3 + -3 = 0
0 + 1c = 7 + -3
1c = 7 + -3

Combine like terms: 7 + -3 = 4
1c = 4

Divide each side by '1'.
c = 4

Simplifying
c = 4

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