9-(-18a)=-1

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Solution for 9-(-18a)=-1 equation:


Simplifying
9 + -1(-18a) = -1

Remove parenthesis around (-18a)
9 + -1 * -18a = -1

Multiply -1 * -18
9 + 18a = -1

Solving
9 + 18a = -1

Solving for variable 'a'.

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

Add '-9' to each side of the equation.
9 + -9 + 18a = -1 + -9

Combine like terms: 9 + -9 = 0
0 + 18a = -1 + -9
18a = -1 + -9

Combine like terms: -1 + -9 = -10
18a = -10

Divide each side by '18'.
a = -0.5555555556

Simplifying
a = -0.5555555556

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