12=2(a-8)+5a

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Solution for 12=2(a-8)+5a equation:


Simplifying
12 = 2(a + -8) + 5a

Reorder the terms:
12 = 2(-8 + a) + 5a
12 = (-8 * 2 + a * 2) + 5a
12 = (-16 + 2a) + 5a

Combine like terms: 2a + 5a = 7a
12 = -16 + 7a

Solving
12 = -16 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
12 + -7a = -16 + 7a + -7a

Combine like terms: 7a + -7a = 0
12 + -7a = -16 + 0
12 + -7a = -16

Add '-12' to each side of the equation.
12 + -12 + -7a = -16 + -12

Combine like terms: 12 + -12 = 0
0 + -7a = -16 + -12
-7a = -16 + -12

Combine like terms: -16 + -12 = -28
-7a = -28

Divide each side by '-7'.
a = 4

Simplifying
a = 4

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