2a-a-1=6

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Solution for 2a-a-1=6 equation:


Simplifying
2a + -1a + -1 = 6

Reorder the terms:
-1 + 2a + -1a = 6

Combine like terms: 2a + -1a = 1a
-1 + 1a = 6

Solving
-1 + 1a = 6

Solving for variable 'a'.

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

Add '1' to each side of the equation.
-1 + 1 + 1a = 6 + 1

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

Combine like terms: 6 + 1 = 7
1a = 7

Divide each side by '1'.
a = 7

Simplifying
a = 7

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