7a-2=20

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Solution for 7a-2=20 equation: 


Simplifying
7a + -2 = 20

Reorder the terms:
-2 + 7a = 20

Solving
-2 + 7a = 20

Solving for variable 'a'.

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

Add '2' to each side of the equation.
-2 + 2 + 7a = 20 + 2

Combine like terms: -2 + 2 = 0
0 + 7a = 20 + 2
7a = 20 + 2

Combine like terms: 20 + 2 = 22
7a = 22

Divide each side by '7'.
a = 3.142857143

Simplifying
a = 3.142857143

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