9-2(a-3)=-9

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Solution for 9-2(a-3)=-9 equation:


Simplifying
9 + -2(a + -3) = -9

Reorder the terms:
9 + -2(-3 + a) = -9
9 + (-3 * -2 + a * -2) = -9
9 + (6 + -2a) = -9

Combine like terms: 9 + 6 = 15
15 + -2a = -9

Solving
15 + -2a = -9

Solving for variable 'a'.

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

Add '-15' to each side of the equation.
15 + -15 + -2a = -9 + -15

Combine like terms: 15 + -15 = 0
0 + -2a = -9 + -15
-2a = -9 + -15

Combine like terms: -9 + -15 = -24
-2a = -24

Divide each side by '-2'.
a = 12

Simplifying
a = 12

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