2(a-4)+12=13

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Solution for 2(a-4)+12=13 equation:


Simplifying
2(a + -4) + 12 = 13

Reorder the terms:
2(-4 + a) + 12 = 13
(-4 * 2 + a * 2) + 12 = 13
(-8 + 2a) + 12 = 13

Reorder the terms:
-8 + 12 + 2a = 13

Combine like terms: -8 + 12 = 4
4 + 2a = 13

Solving
4 + 2a = 13

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 + 2a = 13 + -4

Combine like terms: 4 + -4 = 0
0 + 2a = 13 + -4
2a = 13 + -4

Combine like terms: 13 + -4 = 9
2a = 9

Divide each side by '2'.
a = 4.5

Simplifying
a = 4.5

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