25=a-(13)

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Solution for 25=a-(13) equation:


Simplifying
25 = a + -1(13)

Multiply -1 * 13
25 = a + -13

Reorder the terms:
25 = -13 + a

Solving
25 = -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.
25 + -1a = -13 + a + -1a

Combine like terms: a + -1a = 0
25 + -1a = -13 + 0
25 + -1a = -13

Add '-25' to each side of the equation.
25 + -25 + -1a = -13 + -25

Combine like terms: 25 + -25 = 0
0 + -1a = -13 + -25
-1a = -13 + -25

Combine like terms: -13 + -25 = -38
-1a = -38

Divide each side by '-1'.
a = 38

Simplifying
a = 38

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