3a+5=20

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Solution for 3a+5=20 equation: 


Simplifying
3a + 5 = 20

Reorder the terms:
5 + 3a = 20

Solving
5 + 3a = 20

Solving for variable 'a'.

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

Add '-5' to each side of the equation.
5 + -5 + 3a = 20 + -5

Combine like terms: 5 + -5 = 0
0 + 3a = 20 + -5
3a = 20 + -5

Combine like terms: 20 + -5 = 15
3a = 15

Divide each side by '3'.
a = 5

Simplifying
a = 5

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