8-5(a+1)=9+a

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Solution for 8-5(a+1)=9+a equation:


Simplifying
8 + -5(a + 1) = 9 + a

Reorder the terms:
8 + -5(1 + a) = 9 + a
8 + (1 * -5 + a * -5) = 9 + a
8 + (-5 + -5a) = 9 + a

Combine like terms: 8 + -5 = 3
3 + -5a = 9 + a

Solving
3 + -5a = 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.
3 + -5a + -1a = 9 + a + -1a

Combine like terms: -5a + -1a = -6a
3 + -6a = 9 + a + -1a

Combine like terms: a + -1a = 0
3 + -6a = 9 + 0
3 + -6a = 9

Add '-3' to each side of the equation.
3 + -3 + -6a = 9 + -3

Combine like terms: 3 + -3 = 0
0 + -6a = 9 + -3
-6a = 9 + -3

Combine like terms: 9 + -3 = 6
-6a = 6

Divide each side by '-6'.
a = -1

Simplifying
a = -1

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