2(a-4)+-15=13

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Solution for 2(a-4)+-15=13 equation: 


Simplifying
2(a + -4) + -15 = 13

Reorder the terms:
2(-4 + a) + -15 = 13
(-4 * 2 + a * 2) + -15 = 13
(-8 + 2a) + -15 = 13

Reorder the terms:
-8 + -15 + 2a = 13

Combine like terms: -8 + -15 = -23
-23 + 2a = 13

Solving
-23 + 2a = 13

Solving for variable 'a'.

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

Add '23' to each side of the equation.
-23 + 23 + 2a = 13 + 23

Combine like terms: -23 + 23 = 0
0 + 2a = 13 + 23
2a = 13 + 23

Combine like terms: 13 + 23 = 36
2a = 36

Divide each side by '2'.
a = 18

Simplifying
a = 18

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