a+2=3(a+4)

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Solution for a+2=3(a+4) equation:


Simplifying
a + 2 = 3(a + 4)

Reorder the terms:
2 + a = 3(a + 4)

Reorder the terms:
2 + a = 3(4 + a)
2 + a = (4 * 3 + a * 3)
2 + a = (12 + 3a)

Solving
2 + a = 12 + 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.
2 + a + -3a = 12 + 3a + -3a

Combine like terms: a + -3a = -2a
2 + -2a = 12 + 3a + -3a

Combine like terms: 3a + -3a = 0
2 + -2a = 12 + 0
2 + -2a = 12

Add '-2' to each side of the equation.
2 + -2 + -2a = 12 + -2

Combine like terms: 2 + -2 = 0
0 + -2a = 12 + -2
-2a = 12 + -2

Combine like terms: 12 + -2 = 10
-2a = 10

Divide each side by '-2'.
a = -5

Simplifying
a = -5

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