a=3(a-1)+4

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Solution for a=3(a-1)+4 equation:


Simplifying
a = 3(a + -1) + 4

Reorder the terms:
a = 3(-1 + a) + 4
a = (-1 * 3 + a * 3) + 4
a = (-3 + 3a) + 4

Reorder the terms:
a = -3 + 4 + 3a

Combine like terms: -3 + 4 = 1
a = 1 + 3a

Solving
a = 1 + 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 = 1 + 3a + -3a

Combine like terms: a + -3a = -2a
-2a = 1 + 3a + -3a

Combine like terms: 3a + -3a = 0
-2a = 1 + 0
-2a = 1

Divide each side by '-2'.
a = -0.5

Simplifying
a = -0.5

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