278=n-(-621)

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Solution for 278=n-(-621) equation:


Simplifying
278 = n + -1(-621)

Multiply -1 * -621
278 = n + 621

Reorder the terms:
278 = 621 + n

Solving
278 = 621 + n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
278 + -1n = 621 + n + -1n

Combine like terms: n + -1n = 0
278 + -1n = 621 + 0
278 + -1n = 621

Add '-278' to each side of the equation.
278 + -278 + -1n = 621 + -278

Combine like terms: 278 + -278 = 0
0 + -1n = 621 + -278
-1n = 621 + -278

Combine like terms: 621 + -278 = 343
-1n = 343

Divide each side by '-1'.
n = -343

Simplifying
n = -343

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