6.5a+13=91

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Solution for 6.5a+13=91 equation: 


Simplifying
6.5a + 13 = 91

Reorder the terms:
13 + 6.5a = 91

Solving
13 + 6.5a = 91

Solving for variable 'a'.

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

Add '-13' to each side of the equation.
13 + -13 + 6.5a = 91 + -13

Combine like terms: 13 + -13 = 0
0 + 6.5a = 91 + -13
6.5a = 91 + -13

Combine like terms: 91 + -13 = 78
6.5a = 78

Divide each side by '6.5'.
a = 12

Simplifying
a = 12

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