a+(2a-4)=8

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Solution for a+(2a-4)=8 equation:


Simplifying
a + (2a + -4) = 8

Reorder the terms:
a + (-4 + 2a) = 8

Remove parenthesis around (-4 + 2a)
a + -4 + 2a = 8

Reorder the terms:
-4 + a + 2a = 8

Combine like terms: a + 2a = 3a
-4 + 3a = 8

Solving
-4 + 3a = 8

Solving for variable 'a'.

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

Add '4' to each side of the equation.
-4 + 4 + 3a = 8 + 4

Combine like terms: -4 + 4 = 0
0 + 3a = 8 + 4
3a = 8 + 4

Combine like terms: 8 + 4 = 12
3a = 12

Divide each side by '3'.
a = 4

Simplifying
a = 4

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