42-14=a

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Solution for 42-14=a equation:


Simplifying
42 + -14 = a

Combine like terms: 42 + -14 = 28
28 = a

Solving
28 = 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.
28 + -1a = a + -1a

Combine like terms: a + -1a = 0
28 + -1a = 0

Add '-28' to each side of the equation.
28 + -28 + -1a = 0 + -28

Combine like terms: 28 + -28 = 0
0 + -1a = 0 + -28
-1a = 0 + -28

Combine like terms: 0 + -28 = -28
-1a = -28

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

Simplifying
a = 28

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