2a+8=20

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Solution for 2a+8=20 equation: 


Simplifying
2a + 8 = 20

Reorder the terms:
8 + 2a = 20

Solving
8 + 2a = 20

Solving for variable 'a'.

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

Add '-8' to each side of the equation.
8 + -8 + 2a = 20 + -8

Combine like terms: 8 + -8 = 0
0 + 2a = 20 + -8
2a = 20 + -8

Combine like terms: 20 + -8 = 12
2a = 12

Divide each side by '2'.
a = 6

Simplifying
a = 6

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