-14-a=-21

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Solution for -14-a=-21 equation: 


Simplifying
-14 + -1a = -21

Solving
-14 + -1a = -21

Solving for variable 'a'.

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

Add '14' to each side of the equation.
-14 + 14 + -1a = -21 + 14

Combine like terms: -14 + 14 = 0
0 + -1a = -21 + 14
-1a = -21 + 14

Combine like terms: -21 + 14 = -7
-1a = -7

Divide each side by '-1'.
a = 7

Simplifying
a = 7

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