2[a-1]+a=3

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Solution for 2[a-1]+a=3 equation:


Simplifying
2[a + -1] + a = 3

Reorder the terms:
2[-1 + a] + a = 3
[-1 * 2 + a * 2] + a = 3
[-2 + 2a] + a = 3

Combine like terms: 2a + a = 3a
-2 + 3a = 3

Solving
-2 + 3a = 3

Solving for variable 'a'.

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

Add '2' to each side of the equation.
-2 + 2 + 3a = 3 + 2

Combine like terms: -2 + 2 = 0
0 + 3a = 3 + 2
3a = 3 + 2

Combine like terms: 3 + 2 = 5
3a = 5

Divide each side by '3'.
a = 1.666666667

Simplifying
a = 1.666666667

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