1+2a=13

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Solution for 1+2a=13 equation: 


Simplifying
1 + 2a = 13

Solving
1 + 2a = 13

Solving for variable 'a'.

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

Add '-1' to each side of the equation.
1 + -1 + 2a = 13 + -1

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

Combine like terms: 13 + -1 = 12
2a = 12

Divide each side by '2'.
a = 6

Simplifying
a = 6

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