21-n=49

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Solution for 21-n=49 equation: 


Simplifying
21 + -1n = 49

Solving
21 + -1n = 49

Solving for variable 'n'.

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

Add '-21' to each side of the equation.
21 + -21 + -1n = 49 + -21

Combine like terms: 21 + -21 = 0
0 + -1n = 49 + -21
-1n = 49 + -21

Combine like terms: 49 + -21 = 28
-1n = 28

Divide each side by '-1'.
n = -28

Simplifying
n = -28

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