-5(1+2a)=-85

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Solution for -5(1+2a)=-85 equation: 


Simplifying
-5(1 + 2a) = -85
(1 * -5 + 2a * -5) = -85
(-5 + -10a) = -85

Solving
-5 + -10a = -85

Solving for variable 'a'.

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

Add '5' to each side of the equation.
-5 + 5 + -10a = -85 + 5

Combine like terms: -5 + 5 = 0
0 + -10a = -85 + 5
-10a = -85 + 5

Combine like terms: -85 + 5 = -80
-10a = -80

Divide each side by '-10'.
a = 8

Simplifying
a = 8

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