a+9=8[a-(2-a)]

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Solution for a+9=8[a-(2-a)] equation:


Simplifying
a + 9 = 8[a + -1(2 + -1a)]

Reorder the terms:
9 + a = 8[a + -1(2 + -1a)]
9 + a = 8[a + (2 * -1 + -1a * -1)]
9 + a = 8[a + (-2 + 1a)]

Reorder the terms:
9 + a = 8[-2 + a + 1a]

Combine like terms: a + 1a = 2a
9 + a = 8[-2 + 2a]
9 + a = [-2 * 8 + 2a * 8]
9 + a = [-16 + 16a]

Solving
9 + a = -16 + 16a

Solving for variable 'a'.

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

Add '-16a' to each side of the equation.
9 + a + -16a = -16 + 16a + -16a

Combine like terms: a + -16a = -15a
9 + -15a = -16 + 16a + -16a

Combine like terms: 16a + -16a = 0
9 + -15a = -16 + 0
9 + -15a = -16

Add '-9' to each side of the equation.
9 + -9 + -15a = -16 + -9

Combine like terms: 9 + -9 = 0
0 + -15a = -16 + -9
-15a = -16 + -9

Combine like terms: -16 + -9 = -25
-15a = -25

Divide each side by '-15'.
a = 1.666666667

Simplifying
a = 1.666666667

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