10-2a=9+a

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Solution for 10-2a=9+a equation:


Simplifying
10 + -2a = 9 + a

Solving
10 + -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.
10 + -2a + -1a = 9 + a + -1a

Combine like terms: -2a + -1a = -3a
10 + -3a = 9 + a + -1a

Combine like terms: a + -1a = 0
10 + -3a = 9 + 0
10 + -3a = 9

Add '-10' to each side of the equation.
10 + -10 + -3a = 9 + -10

Combine like terms: 10 + -10 = 0
0 + -3a = 9 + -10
-3a = 9 + -10

Combine like terms: 9 + -10 = -1
-3a = -1

Divide each side by '-3'.
a = 0.3333333333

Simplifying
a = 0.3333333333

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