-2=2(a-15)-a

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Solution for -2=2(a-15)-a equation:


Simplifying
-2 = 2(a + -15) + -1a

Reorder the terms:
-2 = 2(-15 + a) + -1a
-2 = (-15 * 2 + a * 2) + -1a
-2 = (-30 + 2a) + -1a

Combine like terms: 2a + -1a = 1a
-2 = -30 + 1a

Solving
-2 = -30 + 1a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-2 + -1a = -30 + 1a + -1a

Combine like terms: 1a + -1a = 0
-2 + -1a = -30 + 0
-2 + -1a = -30

Add '2' to each side of the equation.
-2 + 2 + -1a = -30 + 2

Combine like terms: -2 + 2 = 0
0 + -1a = -30 + 2
-1a = -30 + 2

Combine like terms: -30 + 2 = -28
-1a = -28

Divide each side by '-1'.
a = 28

Simplifying
a = 28

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