-90=c+(-100)

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Solution for -90=c+(-100) equation:


Simplifying
-90 = c + (-100)
-90 = c + -100

Reorder the terms:
-90 = -100 + c

Solving
-90 = -100 + 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.
-90 + -1c = -100 + c + -1c

Combine like terms: c + -1c = 0
-90 + -1c = -100 + 0
-90 + -1c = -100

Add '90' to each side of the equation.
-90 + 90 + -1c = -100 + 90

Combine like terms: -90 + 90 = 0
0 + -1c = -100 + 90
-1c = -100 + 90

Combine like terms: -100 + 90 = -10
-1c = -10

Divide each side by '-1'.
c = 10

Simplifying
c = 10

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