2a-5+7a=(a+1)

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Solution for 2a-5+7a=(a+1) equation:


Simplifying
2a + -5 + 7a = (a + 1)

Reorder the terms:
-5 + 2a + 7a = (a + 1)

Combine like terms: 2a + 7a = 9a
-5 + 9a = (a + 1)

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

Remove parenthesis around (1 + a)
-5 + 9a = 1 + a

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

Combine like terms: 9a + -1a = 8a
-5 + 8a = 1 + a + -1a

Combine like terms: a + -1a = 0
-5 + 8a = 1 + 0
-5 + 8a = 1

Add '5' to each side of the equation.
-5 + 5 + 8a = 1 + 5

Combine like terms: -5 + 5 = 0
0 + 8a = 1 + 5
8a = 1 + 5

Combine like terms: 1 + 5 = 6
8a = 6

Divide each side by '8'.
a = 0.75

Simplifying
a = 0.75

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