-7-5=a

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Solution for -7-5=a equation:


Simplifying
-7 + -5 = a

Combine like terms: -7 + -5 = -12
-12 = a

Solving
-12 = a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-12 + -1a = a + -1a

Combine like terms: a + -1a = 0
-12 + -1a = 0

Add '12' to each side of the equation.
-12 + 12 + -1a = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -1a = 0 + 12
-1a = 0 + 12

Combine like terms: 0 + 12 = 12
-1a = 12

Divide each side by '-1'.
a = -12

Simplifying
a = -12

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