30+-15+-7=C

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Solution for 30+-15+-7=C equation: 


Simplifying
30 + -15 + -7 = C

Combine like terms: 30 + -15 = 15
15 + -7 = C

Combine like terms: 15 + -7 = 8
8 = C

Solving
8 = C

Solving for variable 'C'.

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

Add '-1C' to each side of the equation.
8 + -1C = C + -1C

Combine like terms: C + -1C = 0
8 + -1C = 0

Add '-8' to each side of the equation.
8 + -8 + -1C = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -1C = 0 + -8
-1C = 0 + -8

Combine like terms: 0 + -8 = -8
-1C = -8

Divide each side by '-1'.
C = 8

Simplifying
C = 8

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