9a-20=43

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Solution for 9a-20=43 equation: 


Simplifying
9a + -20 = 43

Reorder the terms:
-20 + 9a = 43

Solving
-20 + 9a = 43

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 + 9a = 43 + 20

Combine like terms: -20 + 20 = 0
0 + 9a = 43 + 20
9a = 43 + 20

Combine like terms: 43 + 20 = 63
9a = 63

Divide each side by '9'.
a = 7

Simplifying
a = 7

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