6a+12=90

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Solution for 6a+12=90 equation: 


Simplifying
6a + 12 = 90

Reorder the terms:
12 + 6a = 90

Solving
12 + 6a = 90

Solving for variable 'a'.

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

Add '-12' to each side of the equation.
12 + -12 + 6a = 90 + -12

Combine like terms: 12 + -12 = 0
0 + 6a = 90 + -12
6a = 90 + -12

Combine like terms: 90 + -12 = 78
6a = 78

Divide each side by '6'.
a = 13

Simplifying
a = 13

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