n+m-a=d

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Solution for n+m-a=d equation:


Simplifying
n + m + -1a = d

Reorder the terms:
-1a + m + n = d

Solving
-1a + m + n = d

Solving for variable 'a'.

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

Add '-1m' to each side of the equation.
-1a + m + -1m + n = d + -1m

Combine like terms: m + -1m = 0
-1a + 0 + n = d + -1m
-1a + n = d + -1m

Add '-1n' to each side of the equation.
-1a + n + -1n = d + -1m + -1n

Combine like terms: n + -1n = 0
-1a + 0 = d + -1m + -1n
-1a = d + -1m + -1n

Divide each side by '-1'.
a = -1d + m + n

Simplifying
a = -1d + m + n

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