a=(3a-7)

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Solution for a=(3a-7) equation: 


Simplifying
a = (3a + -7)

Reorder the terms:
a = (-7 + 3a)

Remove parenthesis around (-7 + 3a)
a = -7 + 3a

Solving
a = -7 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
a + -3a = -7 + 3a + -3a

Combine like terms: a + -3a = -2a
-2a = -7 + 3a + -3a

Combine like terms: 3a + -3a = 0
-2a = -7 + 0
-2a = -7

Divide each side by '-2'.
a = 3.5

Simplifying
a = 3.5

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