13=6+6a+a

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Solution for 13=6+6a+a equation:


Simplifying
13 = 6 + 6a + a

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

Solving
13 = 6 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
13 + -7a = 6 + 7a + -7a

Combine like terms: 7a + -7a = 0
13 + -7a = 6 + 0
13 + -7a = 6

Add '-13' to each side of the equation.
13 + -13 + -7a = 6 + -13

Combine like terms: 13 + -13 = 0
0 + -7a = 6 + -13
-7a = 6 + -13

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

Divide each side by '-7'.
a = 1

Simplifying
a = 1

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