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

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


Simplifying
8 + -2(a + 2) = 9 + a

Reorder the terms:
8 + -2(2 + a) = 9 + a
8 + (2 * -2 + a * -2) = 9 + a
8 + (-4 + -2a) = 9 + a

Combine like terms: 8 + -4 = 4
4 + -2a = 9 + a

Solving
4 + -2a = 9 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
4 + -2a + -1a = 9 + a + -1a

Combine like terms: -2a + -1a = -3a
4 + -3a = 9 + a + -1a

Combine like terms: a + -1a = 0
4 + -3a = 9 + 0
4 + -3a = 9

Add '-4' to each side of the equation.
4 + -4 + -3a = 9 + -4

Combine like terms: 4 + -4 = 0
0 + -3a = 9 + -4
-3a = 9 + -4

Combine like terms: 9 + -4 = 5
-3a = 5

Divide each side by '-3'.
a = -1.666666667

Simplifying
a = -1.666666667

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