-2a-91=

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Solution for -2a-91= equation: 


Simplifying
-2a + -91 = 0

Reorder the terms:
-91 + -2a = 0

Solving
-91 + -2a = 0

Solving for variable 'a'.

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

Add '91' to each side of the equation.
-91 + 91 + -2a = 0 + 91

Combine like terms: -91 + 91 = 0
0 + -2a = 0 + 91
-2a = 0 + 91

Combine like terms: 0 + 91 = 91
-2a = 91

Divide each side by '-2'.
a = -45.5

Simplifying
a = -45.5

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