3A+20=8A-1

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Solution for 3A+20=8A-1 equation:


Simplifying
3A + 20 = 8A + -1

Reorder the terms:
20 + 3A = 8A + -1

Reorder the terms:
20 + 3A = -1 + 8A

Solving
20 + 3A = -1 + 8A

Solving for variable 'A'.

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

Add '-8A' to each side of the equation.
20 + 3A + -8A = -1 + 8A + -8A

Combine like terms: 3A + -8A = -5A
20 + -5A = -1 + 8A + -8A

Combine like terms: 8A + -8A = 0
20 + -5A = -1 + 0
20 + -5A = -1

Add '-20' to each side of the equation.
20 + -20 + -5A = -1 + -20

Combine like terms: 20 + -20 = 0
0 + -5A = -1 + -20
-5A = -1 + -20

Combine like terms: -1 + -20 = -21
-5A = -21

Divide each side by '-5'.
A = 4.2

Simplifying
A = 4.2

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