-(2a+2)=90

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Solution for -(2a+2)=90 equation: 


Simplifying
-1(2a + 2) = 90

Reorder the terms:
-1(2 + 2a) = 90
(2 * -1 + 2a * -1) = 90
(-2 + -2a) = 90

Solving
-2 + -2a = 90

Solving for variable 'a'.

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

Add '2' to each side of the equation.
-2 + 2 + -2a = 90 + 2

Combine like terms: -2 + 2 = 0
0 + -2a = 90 + 2
-2a = 90 + 2

Combine like terms: 90 + 2 = 92
-2a = 92

Divide each side by '-2'.
a = -46

Simplifying
a = -46

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