3a+20=28

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Solution for 3a+20=28 equation: 


Simplifying
3a + 20 = 28

Reorder the terms:
20 + 3a = 28

Solving
20 + 3a = 28

Solving for variable 'a'.

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

Add '-20' to each side of the equation.
20 + -20 + 3a = 28 + -20

Combine like terms: 20 + -20 = 0
0 + 3a = 28 + -20
3a = 28 + -20

Combine like terms: 28 + -20 = 8
3a = 8

Divide each side by '3'.
a = 2.666666667

Simplifying
a = 2.666666667

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