7+6=a

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Solution for 7+6=a equation:


Simplifying
7 + 6 = a

Combine like terms: 7 + 6 = 13
13 = a

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

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

Add '-13' to each side of the equation.
13 + -13 + -1a = 0 + -13

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

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

Divide each side by '-1'.
a = 13

Simplifying
a = 13

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