77-n=-21

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Solution for 77-n=-21 equation:


Simplifying
77 + -1n = -21

Solving
77 + -1n = -21

Solving for variable 'n'.

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

Add '-77' to each side of the equation.
77 + -77 + -1n = -21 + -77

Combine like terms: 77 + -77 = 0
0 + -1n = -21 + -77
-1n = -21 + -77

Combine like terms: -21 + -77 = -98
-1n = -98

Divide each side by '-1'.
n = 98

Simplifying
n = 98

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