A-8a+20a+7a=-20

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Solution for A-8a+20a+7a=-20 equation: 


Simplifying
A + -8a + 20a + 7a = -20

Combine like terms: -8a + 20a = 12a
A + 12a + 7a = -20

Combine like terms: 12a + 7a = 19a
A + 19a = -20

Solving
A + 19a = -20

Solving for variable 'A'.

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

Add '-19a' to each side of the equation.
A + 19a + -19a = -20 + -19a

Combine like terms: 19a + -19a = 0
A + 0 = -20 + -19a
A = -20 + -19a

Simplifying
A = -20 + -19a

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