-a+15=a-13

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Solution for -a+15=a-13 equation:


Simplifying
-1a + 15 = a + -13

Reorder the terms:
15 + -1a = a + -13

Reorder the terms:
15 + -1a = -13 + a

Solving
15 + -1a = -13 + a

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.
15 + -1a + -1a = -13 + a + -1a

Combine like terms: -1a + -1a = -2a
15 + -2a = -13 + a + -1a

Combine like terms: a + -1a = 0
15 + -2a = -13 + 0
15 + -2a = -13

Add '-15' to each side of the equation.
15 + -15 + -2a = -13 + -15

Combine like terms: 15 + -15 = 0
0 + -2a = -13 + -15
-2a = -13 + -15

Combine like terms: -13 + -15 = -28
-2a = -28

Divide each side by '-2'.
a = 14

Simplifying
a = 14

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