c-(-30)=100

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Solution for c-(-30)=100 equation: 


Simplifying
c + -1(-30) = 100

Multiply -1 * -30
c + 30 = 100

Reorder the terms:
30 + c = 100

Solving
30 + c = 100

Solving for variable 'c'.

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

Add '-30' to each side of the equation.
30 + -30 + c = 100 + -30

Combine like terms: 30 + -30 = 0
0 + c = 100 + -30
c = 100 + -30

Combine like terms: 100 + -30 = 70
c = 70

Simplifying
c = 70

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